🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 129 (from laksa109)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa129.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 FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://pubmed.ncbi.nlm.nih.gov/35412612/\')), getAhrefsUnparsedNoserviceFromURL(\'https://pubmed.ncbi.nlm.nih.gov/35412612/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/","crawl_time":1766203417,"first_indexed_time":1649828257,"http_code":200,"src_unparsed":"gov,nih!nlm,ncbi,pubmed,\/35412612\/ s443","src_root_hash":"7295144728021232729","history_drop_reason":null,"meta_title":"Comparative Effectiveness of mRNA and Inactivated Whole-Virus Vaccines Against Coronavirus Disease 2019 Infection and Severe Disease in Singapore","meta_descriptions":["Compared with individuals vaccinated with Pfizer-BioNTech\/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.4 …"],"attrs_boilerpipe_text":"Clin Infect Dis\n.\n2022 Oct 12;75(8):1442-1445.\ndoi: 10.1093\/cid\/ciac288.\nAffiliations\n1\nMinistry of Health, Singapore.\n2\nNational Centre for Infectious Diseases, Singapore.\n3\nLee Kong Chian School of Medicine, Nanyang Technological University, Singapore.\n4\nYong Loo Lin School of Medicine, National University of Singapore, Singapore.\n5\nDepartment of Infectious Diseases, Tan Tock Seng Hospital, Singapore.\n6\nSaw Swee Hock School of Public Health, National University of Singapore, Singapore.\nPMID:\n35412612\nPMCID:\nPMC9047219\nDOI:\n10.1093\/cid\/ciac288\nAbstract\nCompared with individuals vaccinated with Pfizer-BioNTech\/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.42 (95% CI, 0.25-0.70) times less likely to develop severe disease.\nKeywords:\nCOVID-19; SARS-CoV-2; inactivated vaccine; mRNA vaccine; vaccines.\n© The Author(s) 2022. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.\nMeSH terms\nCOVID-19 Vaccines\nCOVID-19* \/ prevention & control\nHumans\nRNA, Messenger\nSingapore \/ epidemiology\nVaccines, Inactivated\nSubstances\nCOVID-19 Vaccines\nRNA, Messenger\nVaccines, Inactivated","attrs_markdown":"# Comparative Effectiveness of mRNA and Inactivated Whole-Virus Vaccines Against Coronavirus Disease 2019 Infection and Severe Disease in Singapore\nClin Infect Dis. 2022 Oct 12;75(8):1442-1445.   doi: 10.1093\/cid\/ciac288.\n\n### Authors\n[M Premikha](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Premikha+M&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\") , [Calvin J Chiew](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Chiew+CJ&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\") , [Wycliffe E Wei](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Wei+WE&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\") , [Yee Sin Leo](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Leo+YS&cauthor_id=35412612)  [2](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-2 \"National Centre for Infectious Diseases, Singapore.\")   [3](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-3 \"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.\")   [4](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-4 \"Yong Loo Lin School of Medicine, National University of Singapore, Singapore.\")   [5](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-5 \"Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.\")   [6](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-6 \"Saw Swee Hock School of Public Health, National University of Singapore, Singapore.\") , [Benjamin Ong](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Ong+B&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\")   [4](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-4 \"Yong Loo Lin School of Medicine, National University of Singapore, Singapore.\") , [David Chien Lye](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Lye+DC&cauthor_id=35412612)  [2](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-2 \"National Centre for Infectious Diseases, Singapore.\")   [3](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-3 \"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.\")   [4](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-4 \"Yong Loo Lin School of Medicine, National University of Singapore, Singapore.\")   [5](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-5 \"Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.\") , [Vernon J Lee](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Lee+VJ&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\")   [6](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-6 \"Saw Swee Hock School of Public Health, National University of Singapore, Singapore.\") , [Kelvin Bryan Tan](https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=Tan+KB&cauthor_id=35412612)  [1](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-1 \"Ministry of Health, Singapore.\")   [6](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/#affiliation-6 \"Saw Swee Hock School of Public Health, National University of Singapore, Singapore.\")\n\n### Affiliations\n- 1 Ministry of Health, Singapore.\n- 2 National Centre for Infectious Diseases, Singapore.\n- 3 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.\n- 4 Yong Loo Lin School of Medicine, National University of Singapore, Singapore.\n- 5 Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.\n- 6 Saw Swee Hock School of Public Health, National University of Singapore, Singapore.\n\n- PMID:   [35412612](https:\/\/pubmed.ncbi.nlm.nih.gov\/35412612\/)\n- PMCID:   [PMC9047219](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9047219\/)\n- DOI:   [10\\.1093\/cid\/ciac288](https:\/\/doi.org\/10.1093\/cid\/ciac288)\n\n## Abstract\nCompared with individuals vaccinated with Pfizer-BioNTech\/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.42 (95% CI, 0.25-0.70) times less likely to develop severe disease.\n\n**Keywords:**  COVID-19; SARS-CoV-2; inactivated vaccine; mRNA vaccine; vaccines.\n\n© The Author(s) 2022. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.\n\n## MeSH terms\n- COVID-19 Vaccines\n- COVID-19\\* \/ prevention & control\n- Humans\n- RNA, Messenger\n- Singapore \/ epidemiology\n- Vaccines, Inactivated\n\n## Substances\n- COVID-19 Vaccines\n- RNA, Messenger\n- Vaccines, Inactivated","attrs_readable_markdown":null,"meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

3 months ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	3.6 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://pubmed.ncbi.nlm.nih.gov/35412612/
Last Crawled	2025-12-20 04:03:37 (3 months ago)
First Indexed	2022-04-13 05:37:37 (3 years ago)
HTTP Status Code	200
Meta Title	Comparative Effectiveness of mRNA and Inactivated Whole-Virus Vaccines Against Coronavirus Disease 2019 Infection and Severe Disease in Singapore
Meta Description	Compared with individuals vaccinated with Pfizer-BioNTech/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.4 …
Meta Canonical	null
Boilerpipe Text	Clin Infect Dis . 2022 Oct 12;75(8):1442-1445. doi: 10.1093/cid/ciac288. Affiliations 1 Ministry of Health, Singapore. 2 National Centre for Infectious Diseases, Singapore. 3 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore. 4 Yong Loo Lin School of Medicine, National University of Singapore, Singapore. 5 Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore. 6 Saw Swee Hock School of Public Health, National University of Singapore, Singapore. PMID: 35412612 PMCID: PMC9047219 DOI: 10.1093/cid/ciac288 Abstract Compared with individuals vaccinated with Pfizer-BioNTech/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.42 (95% CI, 0.25-0.70) times less likely to develop severe disease. Keywords: COVID-19; SARS-CoV-2; inactivated vaccine; mRNA vaccine; vaccines. © The Author(s) 2022. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. MeSH terms COVID-19 Vaccines COVID-19* / prevention & control Humans RNA, Messenger Singapore / epidemiology Vaccines, Inactivated Substances COVID-19 Vaccines RNA, Messenger Vaccines, Inactivated
Markdown	# Comparative Effectiveness of mRNA and Inactivated Whole-Virus Vaccines Against Coronavirus Disease 2019 Infection and Severe Disease in Singapore Clin Infect Dis. 2022 Oct 12;75(8):1442-1445. doi: 10.1093/cid/ciac288. ### Authors [M Premikha](https://pubmed.ncbi.nlm.nih.gov/?term=Premikha+M&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") , [Calvin J Chiew](https://pubmed.ncbi.nlm.nih.gov/?term=Chiew+CJ&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") , [Wycliffe E Wei](https://pubmed.ncbi.nlm.nih.gov/?term=Wei+WE&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") , [Yee Sin Leo](https://pubmed.ncbi.nlm.nih.gov/?term=Leo+YS&cauthor_id=35412612) [2](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-2 "National Centre for Infectious Diseases, Singapore.") [3](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-3 "Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.") [4](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-4 "Yong Loo Lin School of Medicine, National University of Singapore, Singapore.") [5](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-5 "Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.") [6](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-6 "Saw Swee Hock School of Public Health, National University of Singapore, Singapore.") , [Benjamin Ong](https://pubmed.ncbi.nlm.nih.gov/?term=Ong+B&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") [4](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-4 "Yong Loo Lin School of Medicine, National University of Singapore, Singapore.") , [David Chien Lye](https://pubmed.ncbi.nlm.nih.gov/?term=Lye+DC&cauthor_id=35412612) [2](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-2 "National Centre for Infectious Diseases, Singapore.") [3](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-3 "Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.") [4](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-4 "Yong Loo Lin School of Medicine, National University of Singapore, Singapore.") [5](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-5 "Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.") , [Vernon J Lee](https://pubmed.ncbi.nlm.nih.gov/?term=Lee+VJ&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") [6](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-6 "Saw Swee Hock School of Public Health, National University of Singapore, Singapore.") , [Kelvin Bryan Tan](https://pubmed.ncbi.nlm.nih.gov/?term=Tan+KB&cauthor_id=35412612) [1](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-1 "Ministry of Health, Singapore.") [6](https://pubmed.ncbi.nlm.nih.gov/35412612/#affiliation-6 "Saw Swee Hock School of Public Health, National University of Singapore, Singapore.") ### Affiliations - 1 Ministry of Health, Singapore. - 2 National Centre for Infectious Diseases, Singapore. - 3 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore. - 4 Yong Loo Lin School of Medicine, National University of Singapore, Singapore. - 5 Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore. - 6 Saw Swee Hock School of Public Health, National University of Singapore, Singapore. - PMID: [35412612](https://pubmed.ncbi.nlm.nih.gov/35412612/) - PMCID: [PMC9047219](https://pmc.ncbi.nlm.nih.gov/articles/PMC9047219/) - DOI: [10\.1093/cid/ciac288](https://doi.org/10.1093/cid/ciac288) ## Abstract Compared with individuals vaccinated with Pfizer-BioNTech/Comirnaty, recipients of Sinovac-CoronaVac and Sinopharm were 2.37 (95% CI, 2.29-2.46) and 1.62 (95% CI, 1.43-1.85) times more likely to be infected with coronavirus disease 19, respectively, while individuals vaccinated with Moderna were 0.42 (95% CI, 0.25-0.70) times less likely to develop severe disease. Keywords: COVID-19; SARS-CoV-2; inactivated vaccine; mRNA vaccine; vaccines. © The Author(s) 2022. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. ## MeSH terms - COVID-19 Vaccines - COVID-19\* / prevention & control - Humans - RNA, Messenger - Singapore / epidemiology - Vaccines, Inactivated ## Substances - COVID-19 Vaccines - RNA, Messenger - Vaccines, Inactivated
Readable Markdown	null
Shard	129 (laksa)
Root Hash	7295144728021232729
Unparsed URL	gov,nih!nlm,ncbi,pubmed,/35412612/ s443