🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 67 (from laksa008)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa067.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical, ml_categories_json AS ml_categories_json, ml_types_json AS ml_types_json, ml_intent_types_json AS ml_intent_types_json, meta_language AS meta_language, attrs_author AS attrs_author, ifNull(toUnixTimestamp(attrs_publish_time), 0) AS attrs_publish_time, ifNull(toUnixTimestamp(attrs_original_publish_time), 0) AS attrs_original_publish_time, ifNull(attrs_is_republished, 0) AS attrs_is_republished, ifNull(attrs_nr_words, 0) AS attrs_nr_words, ifNull(attrs_boilerpipe_nr_words, 0) AS attrs_boilerpipe_nr_words, ifNull(body_ext_links_number, 0) AS body_ext_links_number, ifNull(body_int_links_number, 0) AS body_int_links_number, ifNull(meta_nofollow, 0) AS meta_nofollow, ifNull(meta_noarchive, 0) AS meta_noarchive, ifNull(props_was_rendered, 0) AS props_was_rendered, ifNull(src_redirect, \'\') AS src_redirect, ifNull(download_time_msec, 0) AS download_time_msec, ifNull(download_ttfb_msec, 0) AS download_ttfb_msec, ifNull(download_size, 0) AS download_size FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/","crawl_time":1776328776,"first_indexed_time":1623217163,"http_code":200,"src_unparsed":"com,rafflesmedicalgroup!www,\/covid-19\/vaccines\/sinovac\/ s443","src_root_hash":"15892384988659792067","history_drop_reason":null,"meta_title":"COVID-19 Vaccines - Sinovac | Raffles Medical Group","meta_descriptions":["Sinovac is a COVID-19 vaccine developed in China that uses inactivated virus particles to teach our body's immune system to make antibodies against COVID-19."],"attrs_boilerpipe_text":"The WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a\n51% efficacy in preventing Covid-19\nand has\nprevented severe Covid-19 and hospitalisation in 100%\nof the studied population\n2\n.\nApproval of Sinovac Covid-19 Vaccine in Countries:\nChina’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population.\nParticipating Countries In Clinical Efficacy Trials\nEfficacy Rate\nBrazil\n50.65%\nChile\n67%\nIndonesia\n65.3%\nTurkey\n83.5%\nCountries That Approve Emergency Use of Sinova\nAlbania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe\n(Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention)","attrs_markdown":"[Skip to content](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/#fl-main-content)\n\n[![Raffles Medical Group](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2023\/05\/raffles-medical-group-logo-2023.svg)](https:\/\/www.rafflesmedicalgroup.com\/)\n\n- [Book an Appointment](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/)\n- [Download](https:\/\/www.rafflesmedicalgroup.com\/raffles-connect\/)\n- [eStore](https:\/\/www.raffleshealth.com\/)\n- [Contact](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/)\n  - [(+65) 6311 1111](tel:+6563111111)\n  - [Make an Enquiry](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/)\n\n[![Raffles Medical](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2020\/07\/logo-raffles-medical.png)](https:\/\/www.rafflesmedicalgroup.com\/covid-19-advisory\/)\n\n- [COVID-19](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/)\n- COVID-19 Tests\n  - - [COVID-19 Tests](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/covid-19-tests\/)\n    - [Antigen Rapid Test Kit](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/covid-19-tests\/antigen-rapid-test-kit\/)\n- COVID-19 Vaccines\n  - - [COVID-19 Vaccines](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/)\n    - [Sinopharm COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinopharm\/)\n    - [Pfizer-BioNTech COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/pfizer-biontech\/)\n    - [Moderna COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/moderna\/)\n  - - [Sinovac COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/)\n    - [AstraZeneca COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/oxford-astrazeneca\/)\n    - [Janssen COVID-19 Vaccine](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/janssen\/)\n  - - [Vaccination Centres](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/vaccination-centres\/)\n- More\n  - [Outbreak Situation](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/outbreak-situation\/)\n  - [Services Updates](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/services-updates\/)\n  - [Personal Preventive Measures\/Travel](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/personal-preventive-measures-and-travel-advice\/)\n\n[Raffles Medical Group](https:\/\/www.rafflesmedicalgroup.com\/) » [COVID-19](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/) » [COVID-19 Vaccines](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/) » **Sinovac COVID-19 Vaccine**\n\n# Sinovac COVID-19 Vaccine\nRegistration for interest in the Sinopharm vaccine is now available. [Register your interest](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinopharm\/#interest).\n\n## What you need to know about Sinovac vaccine\n24 Private Healthcare Clinics have been selected to provide these vaccines.\n\nYou can contact these clinics directly to arrange for your vaccination\n\nPlease refer to [here](https:\/\/www.moh.gov.sg\/docs\/librariesprovider5\/pressroom\/press-releases\/annex-a-\\(1\\).pdf) for details of the selected clinics.\n\nSince 2 June 2021, the Sinovac-Coronavac (Sinovac) Covid-19 vaccine can be administered under the Special Access Route (SAR) scheme1. This is part of the overall efforts to enhance vaccination coverage against Covid-19 in Singapore. Sinovac was approved by the World Health Organisation to be on its emergency-use listing on 1 June 2021.\n\n**On this page:**\n\n- [What's different about Sinovac Vaccine?](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/#sinovac-difference)\n- [Who is eligible for the Sinovac vaccine?](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/#eligibility)\n- [How does Sinovac work to protect me against COVID-19?](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/#how)\n- [How safe is Sinovac?](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/#safety)\n## What’s different about Sinovac vaccine?\n![An inactivated COVID-19 virus](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-icon-deadvirus.png)\n\n##### It is an inactivated virus\nInactivated viruses has been used as vaccinations for more than a century. Some common vaccinations that are inactivated viruses include HPV vaccine, flu vaccines and hepatitis A.\n\n![Antibodies fighting against COVID-19](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-icon-antibodies.png)\n\n##### It uses your own antibodies against COVID-19\nSinovac works by teaching your immune system to make antibodies against Covid-19.\n\n![Normal fridge temperature](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-icon-temp.png)\n\n##### It is stored at normal fridge temperatures\nLike the traditional flu vaccination, Sinovac is stored at normal fridge temperatures of 2 to 8°C.\n\n### Who is eligible for the Sinovac vaccine?\n|   |   |\n|---|---|\n| ![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-icon-adult.png) | Eligible for use in adults 18 years and older. |\n| ![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-icon-mrna.png) | Suitable for consideration by individuals who are not able to take mRNA vaccines due to anaphylaxis.  Based on existing clinical trials and studies, no severe hypersensitivity and anaphylaxis reactions were recorded. |\n***\n### What is the recommended dosage for administration?\n|   |   |\n|---|---|\n| ![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-icon-2doses-24weeks.png) | Two-doses with an interval of 2-4 weeks between each dose. |\n\n## How does Sinovac work to protect me against COVID-19?\n![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid19-sinovac-howdiagram.jpg)\n\nThe Sinovac vaccine is a vaccine that uses inactivated COVID-19 virus to teach your immune system to make antibodies against COVID-19, creating an immune response to COVID-19.\n\nWhen introduced to your body, your immune system will make antibodies against the coronavirus, attaching to viral proteins. As the vaccine uses a dead or inactivated virus, the vaccine can be safely injected into the arm without causing the individual to develop COVID-19.\n\n![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid19-sinovac-howdiagram-mb.jpg)Once the vaccine is in your system, some of the inactivated viruses will be absorbed by a type of immune cell called the anti-gen presenting cell. This type of cell will then display some of the fragments of inactivated virus on its surface, then known as a helper T cell. If the fragment fits onto the surface protein of the cell, it then can be activated and gets other immune cells to also respond to the vaccine.\n\nWhen you are vaccinated with Sinovac, your body’s immune system can respond to an infection of live coronaviruses by producing antibodies to block the virus.\n\n## How safe is Sinovac?\nThe WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a **51% efficacy in preventing Covid-19** and has **prevented severe Covid-19 and hospitalisation in 100%** of the studied population2.\n\n#### Approval of Sinovac Covid-19 Vaccine in Countries:\nChina’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population.\n\n|   |   |\n|---|---|\n| ![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-article-logo-sinovac.png) |   |\n| Participating Countries In Clinical Efficacy Trials | Efficacy Rate |\n| Brazil | 50\\.65% |\n| Chile | 67% |\n| Indonesia | 65\\.3% |\n| Turkey | 83\\.5% |\n| Countries That Approve Emergency Use of Sinova |   |\n| Albania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe |   |\n\n(Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention)\n\n**Footnotes:**  \n 1 [Sinovac vaccine can be administered under the Special Access Route (SAR) scheme (4 June 2021)](https:\/\/www.moh.gov.sg\/news-highlights\/details\/giving-maximum-protection-to-individuals-through-vaccination\/)  \n 2 [WHO validates Sinovac Covid-19 vaccine for emergency use (1 June 2021)](https:\/\/www.who.int\/news\/item\/01-06-2021-who-validates-sinovac-covid-19-vaccine-for-emergency-use-and-issues-interim-policy-recommendations)\n\n## Learn more about Sinovac and other COVID-19 vaccines\n[![COVID-19 vaccine vial](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/header-covid-vac-safe-720x405-landscape-c0ce7c15edf003cc53c4ba7cc49add07-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/are-the-mrna-covid-vaccines-safe-for-me\/)\n\n## [Are the mRNA COVID vaccines safe for me?](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/are-the-mrna-covid-vaccines-safe-for-me\/ \"Are the mRNA COVID vaccines safe for me?\")\n\n[![covid19-sinovac-mrna-difference-article](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/covid19-sinovac-mrna-difference-article-720x405-landscape-eabf94949a44c80b4f25069314f7f843-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/what-are-the-differences-between-sinovac-and-mrna-vaccines\/)\n\n## [What are the differences between Sinovac and mRNA vaccines?](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/what-are-the-differences-between-sinovac-and-mrna-vaccines\/ \"What are the differences between Sinovac and mRNA vaccines?\")\n\n[![Covid-19 Sinovac vaccine](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/covid19-sinovac-5myths-article-720x405-landscape-820b1d3eeab48b61eca3b9a391c241e0-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/five-things-to-know-about-the-sinovac-vaccine\/)\n\n## [Five Things to Know About the Sinovac Vaccine](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/five-things-to-know-about-the-sinovac-vaccine\/ \"Five Things to Know About the Sinovac Vaccine\")\n\n[![Vaccination syringe](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/header-vaccine-101-720x405-landscape-4e27d6fab3a3969f3478b0407cb4705d-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/covid-19-vaccination-101\/)\n\n## [COVID-19 Vaccination 101](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/covid-19-vaccination-101\/ \"COVID-19 Vaccination 101\")\n\n[![Covid-19 variants: The B.1.617 strain](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/covid-19-variants-720x405-landscape-e04d5c46993c6501e1622813ce96474c-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/covid-19-variants-the-b-1-617-strain-common-questions-asked\/)\n\n## [Covid-19 variants: The B.1.617 strain Common Questions Asked](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/covid-19-variants-the-b-1-617-strain-common-questions-asked\/ \"Covid-19 variants: The B.1.617 strain Common Questions Asked\")\n\n[![Should older people get COVID-19 vaccination](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/bb-plugin\/cache\/covid-19-older-people-720x405-landscape-867efc35ec49cda4c5ec66b3106ae78c-.jpg)](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/the-impact-of-covid-19-on-older-people\/)\n\n## [The impact of COVID-19 on older people](https:\/\/www.rafflesmedicalgroup.com\/health-resources\/health-articles\/the-impact-of-covid-19-on-older-people\/ \"The impact of COVID-19 on older people\")\n\n#### Our Group\n- [About Us](https:\/\/www.rafflesmedicalgroup.com\/our-group\/about-us\/our-heritage\/)\n- [Investor Relations](https:\/\/www.rafflesmedicalgroup.com\/investor-relations\/)\n- [News Room](https:\/\/www.rafflesmedicalgroup.com\/our-group\/news-room\/press-releases\/)\n- [Careers at Raffles](https:\/\/www.rafflesmedicalgroup.com\/careers-at-raffles\/)\n- [Contact Us](https:\/\/www.rafflesmedicalgroup.com\/our-group\/contact-us\/)\n- [FAQs](https:\/\/www.rafflesmedicalgroup.com\/faqs\/)\n\n#### Quick Links\n- [Services](https:\/\/www.rafflesmedicalgroup.com\/#rmgservices)\n- [Government Schemes](https:\/\/www.rafflesmedicalgroup.com\/government-schemes\/overview\/)\n- [Training](https:\/\/www.rafflesmedicalgroup.com\/healthcare-institute\/)\n- [Insurance](https:\/\/www.raffleshealthinsurance.com\/)\n- 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[Contact Us](https:\/\/www.rafflesmedicalgroup.com\/our-group\/contact-us\/)\n  - [Frequently Asked Questions (FAQS)](https:\/\/www.rafflesmedicalgroup.com\/faqs\/)\n- [News Room](https:\/\/www.rafflesmedicalgroup.com\/covid-19\/vaccines\/sinovac\/)\n  - [Press Releases](https:\/\/www.rafflesmedicalgroup.com\/our-group\/news-room\/press-releases\/)\n  - [Company News](https:\/\/www.rafflesmedicalgroup.com\/our-group\/news-room\/company-news\/)\n  - [Media Contact](https:\/\/www.rafflesmedicalgroup.com\/our-group\/news-room\/media-contact\/)\n\n×\n\n×","attrs_readable_markdown":"The WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a **51% efficacy in preventing Covid-19** and has **prevented severe Covid-19 and hospitalisation in 100%** of the studied population2.\n\n#### Approval of Sinovac Covid-19 Vaccine in Countries:\nChina’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population.\n\n|   |   |\n|---|---|\n| ![](https:\/\/www.rafflesmedicalgroup.com\/wp-content\/uploads\/2021\/06\/covid-sinovac-article-logo-sinovac.png) |   |\n| Participating Countries In Clinical Efficacy Trials | Efficacy Rate |\n| Brazil | 50\\.65% |\n| Chile | 67% |\n| Indonesia | 65\\.3% |\n| Turkey | 83\\.5% |\n| Countries That Approve Emergency Use of Sinova |   |\n| Albania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe |   |\n\n(Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention)","meta_canonical":null,"ml_categories_json":"{\"\/Health\":996,\"\/Health\/Public_Health\":518,\"\/Health\/Public_Health\/Health_Policy\":476}","ml_types_json":"{\"\/Article\":721,\"\/Article\/FAQ\":571}","ml_intent_types_json":"{\"Informational\":978,\"Commercial\":244}","meta_language":"en-us","attrs_author":null,"attrs_publish_time":1615420800,"attrs_original_publish_time":1615420800,"attrs_is_republished":0,"attrs_nr_words":"1044","attrs_boilerpipe_nr_words":"216","body_ext_links_number":13,"body_int_links_number":67,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":3553,"download_ttfb_msec":2325,"download_size":82404}

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COVID-19 Vaccines - Sinovac | Raffles Medical Group

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Sinovac is a COVID-19 vaccine developed in China that uses inactivated virus particles to teach our body's immune system to make antibodies against COVID-19.

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The WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a 51% efficacy in preventing Covid-19 and has prevented severe Covid-19 and hospitalisation in 100% of the studied population 2 . Approval of Sinovac Covid-19 Vaccine in Countries: China’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population. Participating Countries In Clinical Efficacy Trials Efficacy Rate Brazil 50.65% Chile 67% Indonesia 65.3% Turkey 83.5% Countries That Approve Emergency Use of Sinova Albania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe (Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention)

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[Skip to content](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/#fl-main-content) [![Raffles Medical Group](https://www.rafflesmedicalgroup.com/wp-content/uploads/2023/05/raffles-medical-group-logo-2023.svg)](https://www.rafflesmedicalgroup.com/) - [Book an Appointment](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) - [Download](https://www.rafflesmedicalgroup.com/raffles-connect/) - [eStore](https://www.raffleshealth.com/) - [Contact](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) - [(+65) 6311 1111](tel:+6563111111) - [Make an Enquiry](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) [![Raffles Medical](https://www.rafflesmedicalgroup.com/wp-content/uploads/2020/07/logo-raffles-medical.png)](https://www.rafflesmedicalgroup.com/covid-19-advisory/) - [COVID-19](https://www.rafflesmedicalgroup.com/covid-19/) - COVID-19 Tests - - [COVID-19 Tests](https://www.rafflesmedicalgroup.com/covid-19/covid-19-tests/) - [Antigen Rapid Test Kit](https://www.rafflesmedicalgroup.com/covid-19/covid-19-tests/antigen-rapid-test-kit/) - COVID-19 Vaccines - - [COVID-19 Vaccines](https://www.rafflesmedicalgroup.com/covid-19/vaccines/) - [Sinopharm COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinopharm/) - [Pfizer-BioNTech COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/pfizer-biontech/) - [Moderna COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/moderna/) - - [Sinovac COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) - [AstraZeneca COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/oxford-astrazeneca/) - [Janssen COVID-19 Vaccine](https://www.rafflesmedicalgroup.com/covid-19/vaccines/janssen/) - - [Vaccination Centres](https://www.rafflesmedicalgroup.com/covid-19/vaccines/vaccination-centres/) - More - [Outbreak Situation](https://www.rafflesmedicalgroup.com/covid-19/outbreak-situation/) - [Services Updates](https://www.rafflesmedicalgroup.com/covid-19/services-updates/) - [Personal Preventive Measures/Travel](https://www.rafflesmedicalgroup.com/covid-19/personal-preventive-measures-and-travel-advice/) [Raffles Medical Group](https://www.rafflesmedicalgroup.com/) » [COVID-19](https://www.rafflesmedicalgroup.com/covid-19/) » [COVID-19 Vaccines](https://www.rafflesmedicalgroup.com/covid-19/vaccines/) » **Sinovac COVID-19 Vaccine** # Sinovac COVID-19 Vaccine Registration for interest in the Sinopharm vaccine is now available. [Register your interest](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinopharm/#interest). ## What you need to know about Sinovac vaccine 24 Private Healthcare Clinics have been selected to provide these vaccines. You can contact these clinics directly to arrange for your vaccination Please refer to [here](https://www.moh.gov.sg/docs/librariesprovider5/pressroom/press-releases/annex-a-\(1\).pdf) for details of the selected clinics. Since 2 June 2021, the Sinovac-Coronavac (Sinovac) Covid-19 vaccine can be administered under the Special Access Route (SAR) scheme1. This is part of the overall efforts to enhance vaccination coverage against Covid-19 in Singapore. Sinovac was approved by the World Health Organisation to be on its emergency-use listing on 1 June 2021. **On this page:** - [What's different about Sinovac Vaccine?](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/#sinovac-difference) - [Who is eligible for the Sinovac vaccine?](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/#eligibility) - [How does Sinovac work to protect me against COVID-19?](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/#how) - [How safe is Sinovac?](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/#safety) ## What’s different about Sinovac vaccine? ![An inactivated COVID-19 virus](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-icon-deadvirus.png) ##### It is an inactivated virus Inactivated viruses has been used as vaccinations for more than a century. Some common vaccinations that are inactivated viruses include HPV vaccine, flu vaccines and hepatitis A. ![Antibodies fighting against COVID-19](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-icon-antibodies.png) ##### It uses your own antibodies against COVID-19 Sinovac works by teaching your immune system to make antibodies against Covid-19. ![Normal fridge temperature](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-icon-temp.png) ##### It is stored at normal fridge temperatures Like the traditional flu vaccination, Sinovac is stored at normal fridge temperatures of 2 to 8°C. ### Who is eligible for the Sinovac vaccine? | | | |---|---| | ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-icon-adult.png) | Eligible for use in adults 18 years and older. | | ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-icon-mrna.png) | Suitable for consideration by individuals who are not able to take mRNA vaccines due to anaphylaxis. Based on existing clinical trials and studies, no severe hypersensitivity and anaphylaxis reactions were recorded. | *** ### What is the recommended dosage for administration? | | | |---|---| | ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-icon-2doses-24weeks.png) | Two-doses with an interval of 2-4 weeks between each dose. | ## How does Sinovac work to protect me against COVID-19? ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid19-sinovac-howdiagram.jpg) The Sinovac vaccine is a vaccine that uses inactivated COVID-19 virus to teach your immune system to make antibodies against COVID-19, creating an immune response to COVID-19. When introduced to your body, your immune system will make antibodies against the coronavirus, attaching to viral proteins. As the vaccine uses a dead or inactivated virus, the vaccine can be safely injected into the arm without causing the individual to develop COVID-19. ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid19-sinovac-howdiagram-mb.jpg)Once the vaccine is in your system, some of the inactivated viruses will be absorbed by a type of immune cell called the anti-gen presenting cell. This type of cell will then display some of the fragments of inactivated virus on its surface, then known as a helper T cell. If the fragment fits onto the surface protein of the cell, it then can be activated and gets other immune cells to also respond to the vaccine. When you are vaccinated with Sinovac, your body’s immune system can respond to an infection of live coronaviruses by producing antibodies to block the virus. ## How safe is Sinovac? The WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a **51% efficacy in preventing Covid-19** and has **prevented severe Covid-19 and hospitalisation in 100%** of the studied population2. #### Approval of Sinovac Covid-19 Vaccine in Countries: China’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population. | | | |---|---| | ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-article-logo-sinovac.png) | | | Participating Countries In Clinical Efficacy Trials | Efficacy Rate | | Brazil | 50\.65% | | Chile | 67% | | Indonesia | 65\.3% | | Turkey | 83\.5% | | Countries That Approve Emergency Use of Sinova | | | Albania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe | | (Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention) **Footnotes:** 1 [Sinovac vaccine can be administered under the Special Access Route (SAR) scheme (4 June 2021)](https://www.moh.gov.sg/news-highlights/details/giving-maximum-protection-to-individuals-through-vaccination/) 2 [WHO validates Sinovac Covid-19 vaccine for emergency use (1 June 2021)](https://www.who.int/news/item/01-06-2021-who-validates-sinovac-covid-19-vaccine-for-emergency-use-and-issues-interim-policy-recommendations) ## Learn more about Sinovac and other COVID-19 vaccines [![COVID-19 vaccine vial](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/header-covid-vac-safe-720x405-landscape-c0ce7c15edf003cc53c4ba7cc49add07-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/are-the-mrna-covid-vaccines-safe-for-me/) ## [Are the mRNA COVID vaccines safe for me?](https://www.rafflesmedicalgroup.com/health-resources/health-articles/are-the-mrna-covid-vaccines-safe-for-me/ "Are the mRNA COVID vaccines safe for me?") [![covid19-sinovac-mrna-difference-article](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/covid19-sinovac-mrna-difference-article-720x405-landscape-eabf94949a44c80b4f25069314f7f843-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/what-are-the-differences-between-sinovac-and-mrna-vaccines/) ## [What are the differences between Sinovac and mRNA vaccines?](https://www.rafflesmedicalgroup.com/health-resources/health-articles/what-are-the-differences-between-sinovac-and-mrna-vaccines/ "What are the differences between Sinovac and mRNA vaccines?") [![Covid-19 Sinovac vaccine](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/covid19-sinovac-5myths-article-720x405-landscape-820b1d3eeab48b61eca3b9a391c241e0-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/five-things-to-know-about-the-sinovac-vaccine/) ## [Five Things to Know About the Sinovac Vaccine](https://www.rafflesmedicalgroup.com/health-resources/health-articles/five-things-to-know-about-the-sinovac-vaccine/ "Five Things to Know About the Sinovac Vaccine") [![Vaccination syringe](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/header-vaccine-101-720x405-landscape-4e27d6fab3a3969f3478b0407cb4705d-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/covid-19-vaccination-101/) ## [COVID-19 Vaccination 101](https://www.rafflesmedicalgroup.com/health-resources/health-articles/covid-19-vaccination-101/ "COVID-19 Vaccination 101") [![Covid-19 variants: The B.1.617 strain](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/covid-19-variants-720x405-landscape-e04d5c46993c6501e1622813ce96474c-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/covid-19-variants-the-b-1-617-strain-common-questions-asked/) ## [Covid-19 variants: The B.1.617 strain Common Questions Asked](https://www.rafflesmedicalgroup.com/health-resources/health-articles/covid-19-variants-the-b-1-617-strain-common-questions-asked/ "Covid-19 variants: The B.1.617 strain Common Questions Asked") [![Should older people get COVID-19 vaccination](https://www.rafflesmedicalgroup.com/wp-content/uploads/bb-plugin/cache/covid-19-older-people-720x405-landscape-867efc35ec49cda4c5ec66b3106ae78c-.jpg)](https://www.rafflesmedicalgroup.com/health-resources/health-articles/the-impact-of-covid-19-on-older-people/) ## [The impact of COVID-19 on older people](https://www.rafflesmedicalgroup.com/health-resources/health-articles/the-impact-of-covid-19-on-older-people/ "The impact of COVID-19 on older people") #### Our Group - [About Us](https://www.rafflesmedicalgroup.com/our-group/about-us/our-heritage/) - [Investor Relations](https://www.rafflesmedicalgroup.com/investor-relations/) - [News Room](https://www.rafflesmedicalgroup.com/our-group/news-room/press-releases/) - [Careers at Raffles](https://www.rafflesmedicalgroup.com/careers-at-raffles/) - [Contact Us](https://www.rafflesmedicalgroup.com/our-group/contact-us/) - [FAQs](https://www.rafflesmedicalgroup.com/faqs/) #### Quick Links - [Services](https://www.rafflesmedicalgroup.com/#rmgservices) - [Government Schemes](https://www.rafflesmedicalgroup.com/government-schemes/overview/) - [Training](https://www.rafflesmedicalgroup.com/healthcare-institute/) - [Insurance](https://www.raffleshealthinsurance.com/) - [International](https://www.rafflesmedicalgroup.com/international/medical-clinics-services/) - [Find a Clinic](https://www.rafflesmedicalgroup.com/clinic/) - [Find a Doctor](https://www.rafflesmedicalgroup.com/doctor/) #### Services - [Raffles24 Acute & Critical Care](https://www.rafflesmedicalgroup.com/services/raffles24-acute-and-critical-care/) - [Hospital](https://www.rafflesmedicalgroup.com/services/hospital/) - [Specialist Centres](https://www.rafflesmedicalgroup.com/services/specialist-centres/) - [Family Medicine](https://www.rafflesmedicalgroup.com/services/family-medicine/) - [Raffles Dental](https://www.rafflesmedicalgroup.com/services/dental/) - [Chinese Medicine](https://www.rafflesmedicalgroup.com/services/chinese-medicine/) - [Health Screening](https://www.rafflesmedicalgroup.com/services/health-screening/) - [Raffles HealthyLongevity](https://www.rafflesmedicalgroup.com/raffles-healthy-longevity/) - [Insurance](https://www.raffleshealthinsurance.com/) - [Corporate Healthcare](https://www.rafflesmedicalgroup.com/?page_id=113) - [Training](https://www.rafflesmedicalgroup.com/healthcare-institute/) - [Raffles Health eStore](https://www.raffleshealth.com/) - [Clinical Trials](https://www.rafflesmedicalgroup.com/services/clinical-trials/) #### Contact Us - [Book an Appointment](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) - [Make an Enquiry](https://www.rafflesmedicalgroup.com/covid-19/vaccines/sinovac/) ##### [Corporate Healthcare](https://www.rafflesmedicalgroup.com/corporate-employee-benefits-healthcare/) ##### [Feedback](https://www.rafflesmedicalgroup.com/raffles-medical-group-feedback/) ##### Address: - [Raffles Hospital 585 North Bridge Road Singapore 188770](https://goo.gl/maps/TQckwvgk6KCCTFzt8) Copyright © 2026 Raffles Medical Group. 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The WHO recommends the use of the Sinovac vaccine for adults 18 years and older via a two-dose schedule with a window of two to four weeks between doses. According to WHO vaccine efficacy studies showed that the vaccine has a **51% efficacy in preventing Covid-19** and has **prevented severe Covid-19 and hospitalisation in 100%** of the studied population2. #### Approval of Sinovac Covid-19 Vaccine in Countries: China’s Sinovac-Biotech Covid-19 vaccine has been approved by the World Health Organisation for emergency use in adults 18 years or older. There were no safety concerns identified from pre-clinical trials, while most adverse events were mild to moderate - pain at the injection spot, headache, fatigue. Although efficacy rates differ in countries that participated in the clinical trials, the vaccine efficacy results were promising, showing that the Sinovac vaccine prevented severe COVID-19 symptoms in 100 percent of the studied population. | | | |---|---| | ![](https://www.rafflesmedicalgroup.com/wp-content/uploads/2021/06/covid-sinovac-article-logo-sinovac.png) | | | Participating Countries In Clinical Efficacy Trials | Efficacy Rate | | Brazil | 50\.65% | | Chile | 67% | | Indonesia | 65\.3% | | Turkey | 83\.5% | | Countries That Approve Emergency Use of Sinova | | | Albania, Azerbaijan, Brazil, Cambodia, Chile, China, Colombia, Dominican Republic, Ecuador, Egypt, El Salvador, Hong Kong, Indonesia, Lao People's Democratic Republic, Malaysia, Mexico, Pakistan, Panama, Philippines, Thailand, Tunisia, Turkey, Ukraine, Uruguay, Zimbabwe | | (Source: Channel News Asia, World Health Organisation, US Centers For Disease Control and Prevention)

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