🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 5 (from laksa134)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa005.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://www.cdc.gov/covid/about/reinfection.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.cdc.gov/covid/about/reinfection.html\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.cdc.gov\/covid\/about\/reinfection.html","crawl_time":1774291773,"first_indexed_time":1721611523,"http_code":200,"src_unparsed":"gov,cdc!www,\/covid\/about\/reinfection.html s443","src_root_hash":"17308952984333333205","history_drop_reason":null,"meta_title":"About Reinfection | COVID-19 | CDC","meta_descriptions":["Know why COVID-19 infection can reoccur."],"attrs_boilerpipe_text":"Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again.\nYou can get reinfected multiple times.\nStaying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness.\nOverview\nReinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with\nCOVID-19 vaccines\nand treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness.\nOnce you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization.\nAs the virus evolves, new\nvariants\nwith the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare.\nHow to protect yourself and others\nCDC recommends that all people use\ncore prevention strategies\nto prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19.\nCOVID-19 testing for people with a recent history of infection\nInterpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed\ntesting guidance\nexplaining which type of test you should take under different circumstances.\nJune 14, 2024","attrs_markdown":"[Skip directly to site content](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#content) [Skip directly to search](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#cdc-search__input) [Skip directly to On This Page](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#first-on-this-page)\n\n![](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/uswds\/us_flag_small.png) An official website of the United States government\n\n[Here's how you know](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#gov-notice)\n\n![](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/uswds\/icon-dot-gov.svg)\n\n**Official websites use .gov**\n\nA **.gov** website belongs to an official government organization in the United States.\n\n![](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/uswds\/icon-https.svg)\n\n**Secure .gov websites use HTTPS**\n\nA **lock** (  ) or **https:\/\/** means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.\n\n[![Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/logo\/logo-notext.svg)](https:\/\/www.cdc.gov\/)\n\n[Covid](https:\/\/www.cdc.gov\/covid\/index.html)\n\nExplore This Topic\n\n[For Everyone](https:\/\/www.cdc.gov\/covid\/index.html)\n\n- [About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)\n- [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n- [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)\n- [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)\n- [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)\n- [Treatment](https:\/\/www.cdc.gov\/covid\/treatment\/index.html)\n- [How to Protect Yourself and Others](https:\/\/www.cdc.gov\/covid\/prevention\/index.html)\n- [Tools and Resources](https:\/\/www.cdc.gov\/covid\/communication\/index.html)\n- [View all](https:\/\/www.cdc.gov\/covid\/site.html#gen)\n\n[Health Care Providers](https:\/\/www.cdc.gov\/covid\/hcp\/index.html)\n\n- [Interim Clinical Considerations](https:\/\/www.cdc.gov\/covid\/hcp\/vaccine-considerations\/index.html)\n- [Vaccine Product Information](https:\/\/www.cdc.gov\/covid\/hcp\/eui\/index.html)\n- [Clinical Care Quick Reference](https:\/\/www.cdc.gov\/covid\/hcp\/clinical-care\/index.html)\n- [Infection Control Guidance](https:\/\/www.cdc.gov\/covid\/hcp\/infection-control\/index.html)\n- [Containing COVID-19 in Non-U.S. Healthcare Settings](https:\/\/www.cdc.gov\/covid\/hcp\/non-us-settings\/index.html)\n- [View all](https:\/\/www.cdc.gov\/covid\/site.html#hcp)\n\n[Public Health](https:\/\/www.cdc.gov\/covid\/php\/index.html)\n\n- [Surveillance and Data Analytics](https:\/\/www.cdc.gov\/covid\/php\/surveillance\/index.html)\n- [SARS-CoV-2 Laboratory Biosafety Guidelines](https:\/\/www.cdc.gov\/covid\/php\/lab\/index.html)\n- [Antibody Seroprevalence](https:\/\/www.cdc.gov\/covid\/php\/antibody-seroprevalence\/index.html)\n- [CDC's Role in Tracking Variants](https:\/\/www.cdc.gov\/covid\/php\/variants\/index.html)\n- [SARS-CoV-2 Interagency Group](https:\/\/www.cdc.gov\/covid\/php\/interagency-group\/index.html)\n- [View all](https:\/\/www.cdc.gov\/covid\/site.html#php)\n\n[Home](https:\/\/www.cdc.gov\/covid\/index.html)\n\n[![Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/logo\/logo-notext.svg)](https:\/\/www.cdc.gov\/)\n\n[*search*](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html)\n\n[Covid](https:\/\/www.cdc.gov\/covid\/index.html)\n\nMenu\n\nFor Everyone\n\n- [About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)\n- [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n- [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)\n- [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)\n- [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)\n- [Treatment](https:\/\/www.cdc.gov\/covid\/treatment\/index.html)\n- [How to Protect Yourself and Others](https:\/\/www.cdc.gov\/covid\/prevention\/index.html)\n- [Tools and Resources](https:\/\/www.cdc.gov\/covid\/communication\/index.html)\n- [View All](https:\/\/www.cdc.gov\/covid\/site.html#gen)     [Home](https:\/\/www.cdc.gov\/covid\/index.html)\n\nHealth Care Providers\n\n- [Interim Clinical Considerations](https:\/\/www.cdc.gov\/covid\/hcp\/vaccine-considerations\/index.html)\n- [Vaccine Product Information](https:\/\/www.cdc.gov\/covid\/hcp\/eui\/index.html)\n- [Clinical Care Quick Reference](https:\/\/www.cdc.gov\/covid\/hcp\/clinical-care\/index.html)\n- [Infection Control Guidance](https:\/\/www.cdc.gov\/covid\/hcp\/infection-control\/index.html)\n- [Containing COVID-19 in Non-U.S. Healthcare Settings](https:\/\/www.cdc.gov\/covid\/hcp\/non-us-settings\/index.html)\n- [View All](https:\/\/www.cdc.gov\/covid\/site.html#hcp)     [Home](https:\/\/www.cdc.gov\/covid\/hcp\/index.html)\n\nPublic Health\n\n- [Surveillance and Data Analytics](https:\/\/www.cdc.gov\/covid\/php\/surveillance\/index.html)\n- [SARS-CoV-2 Laboratory Biosafety Guidelines](https:\/\/www.cdc.gov\/covid\/php\/lab\/index.html)\n- [Antibody Seroprevalence](https:\/\/www.cdc.gov\/covid\/php\/antibody-seroprevalence\/index.html)\n- [CDC's Role in Tracking Variants](https:\/\/www.cdc.gov\/covid\/php\/variants\/index.html)\n- [SARS-CoV-2 Interagency Group](https:\/\/www.cdc.gov\/covid\/php\/interagency-group\/index.html)\n- [View All](https:\/\/www.cdc.gov\/covid\/site.html#php)     [Home](https:\/\/www.cdc.gov\/covid\/php\/index.html)\n\n[Covid](https:\/\/www.cdc.gov\/covid\/index.html)\n\n[About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)   [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)   [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)   [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)   [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)   [Treatment](https:\/\/www.cdc.gov\/covid\/treatment\/index.html)   [How to Protect Yourself and Others](https:\/\/www.cdc.gov\/covid\/prevention\/index.html)   [Tools and Resources](https:\/\/www.cdc.gov\/covid\/communication\/index.html)   [View Menu](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html)\n\n![](data:image\/jpeg;base64,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)\n\n# About Reinfection\nJune 14, 2024\n\n[Español](https:\/\/espanol.cdc.gov\/enes\/covid\/about\/reinfection.html)\n\nFor Everyone\n\n## Key points\n- Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again.\n- You can get reinfected multiple times.\n- Staying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness.\n\n![Healthcare provider taking nasal swab test of patient in clinic](https:\/\/www.cdc.gov\/covid\/media\/images\/2024\/07\/GettyImages-1344723275_hi-res-612x612-1.png)\n\n## Overview\nReinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with [COVID-19 vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html) and treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness.\n\nOnce you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization.\n\nAs the virus evolves, new [variants](https:\/\/www.cdc.gov\/covid\/php\/variants\/index.html) with the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare.\n\n## How to protect yourself and others\nCDC recommends that all people use [core prevention strategies](https:\/\/www.cdc.gov\/respiratory-viruses\/prevention\/index.html) to prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19.\n\n**Keep Reading** [How to Protect Yourself and Others](https:\/\/www.cdc.gov\/covid\/prevention\/index.html)\n\n## COVID-19 testing for people with a recent history of infection\nInterpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed [testing guidance](https:\/\/www.cdc.gov\/covid\/testing\/index.html) explaining which type of test you should take under different circumstances.\n\n## On This Page\n- [Overview](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#cdc_disease_basics_overview-overview \"Overview\")\n- [How to protect yourself and others](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#cdc_disease_basics_quick_facts_callout_callout-how-to-protect-yourself-and-others \"How to protect yourself and others\")\n- [COVID-19 testing for people with a recent history of infection](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#cdc_disease_basics_testing_screening-covid-19-testing-for-people-with-a-recent-history-of-infection \"COVID-19 testing for people with a recent history of infection\")\n\n## Related Pages\n- [About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)\n- [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n- [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)\n- [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)\n- [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)\n\n[View All Covid](https:\/\/www.cdc.gov\/covid\/site.html#gen)\n\n[Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n\nJune 14, 2024\n\n[Sources](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#content-sources) [Print](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#print) [Share](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#share)\n\n[Facebook](https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html \"Share to Facebook\")   [LinkedIn](https:\/\/www.linkedin.com\/shareArticle?url=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html&title=About%20Reinfection \"Share to LinkedIn\")   [Twitter](http:\/\/twitter.com\/share?url=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html&text=About%20Reinfection \"Share to Twitter\")   [Syndicate](https:\/\/tools.cdc.gov\/medialibrary\/index.aspx#\/sharecontent \"Embed this Page\")\n\nContent Source:\n\n[National Center for Immunization and Respiratory Diseases](https:\/\/www.cdc.gov\/ncird\/index.html); [Coronavirus and Other Respiratory Viruses Division](https:\/\/www.cdc.gov\/ncird\/divisions-offices\/index.html)\n\n## Related Pages\n- [About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)\n- [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n- [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)\n- [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)\n- [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)\n\n[View All Covid](https:\/\/www.cdc.gov\/covid\/site.html#gen)\n\nBack to Top\n\n## [Covid](https:\/\/www.cdc.gov\/covid\/index.html)\nCOVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly.\n\n[View All](https:\/\/www.cdc.gov\/covid\/site.html)\n\n### [For Everyone](https:\/\/www.cdc.gov\/covid\/index.html#gen)\n- [About COVID-19](https:\/\/www.cdc.gov\/covid\/about\/index.html)\n- [Symptoms](https:\/\/www.cdc.gov\/covid\/signs-symptoms\/index.html)\n- [People with Certain Medical Conditions and COVID-19](https:\/\/www.cdc.gov\/covid\/risk-factors\/index.html)\n- [COVID-19 Vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html)\n- [Testing](https:\/\/www.cdc.gov\/covid\/testing\/index.html)\n- [Treatment](https:\/\/www.cdc.gov\/covid\/treatment\/index.html)\n- [How to Protect Yourself and Others](https:\/\/www.cdc.gov\/covid\/prevention\/index.html)\n- [Tools and Resources](https:\/\/www.cdc.gov\/covid\/communication\/index.html)\n\n### [Health Care Providers](https:\/\/www.cdc.gov\/covid\/hcp\/index.html#hcp)\n- [Interim Clinical Considerations](https:\/\/www.cdc.gov\/covid\/hcp\/vaccine-considerations\/index.html)\n- [Vaccine Product Information](https:\/\/www.cdc.gov\/covid\/hcp\/eui\/index.html)\n- [Clinical Care Quick Reference](https:\/\/www.cdc.gov\/covid\/hcp\/clinical-care\/index.html)\n- [View All](https:\/\/www.cdc.gov\/covid\/site.html#hcp)\n\n### [Public Health](https:\/\/www.cdc.gov\/covid\/php\/index.html#php)\n- [Surveillance and Data Analytics](https:\/\/www.cdc.gov\/covid\/php\/surveillance\/index.html)\n- [SARS-CoV-2 Laboratory Biosafety Guidelines](https:\/\/www.cdc.gov\/covid\/php\/lab\/index.html)\n- [Antibody Seroprevalence](https:\/\/www.cdc.gov\/covid\/php\/antibody-seroprevalence\/index.html)\n- [View All](https:\/\/www.cdc.gov\/covid\/site.html#php)\n\n[Sign up for Email Updates](https:\/\/tools.cdc.gov\/campaignproxyservice\/subscriptions.aspx#featured)\n\n[Contact Us](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#contactUs)\n\n[Contact Us](https:\/\/www.cdc.gov\/cdc-info\/index.html)\n\n- [Call 800-232-4636](tel:800-232-4636)\n- [Contact CDC](https:\/\/www.cdc.gov\/cdc-info\/index.html)\n\n[About CDC](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#aboutCDC)\n\n[About CDC](https:\/\/www.cdc.gov\/about\/)\n\n- [Pressroom](https:\/\/www.cdc.gov\/media\/)\n- [Organization](https:\/\/www.cdc.gov\/about\/organization\/)\n- [Budget & Funding](https:\/\/www.cdc.gov\/budget\/)\n- [Careers & Jobs](https:\/\/jobs.cdc.gov\/index.html)\n\n[Policies](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#policies)\n\n- [Accessibility](https:\/\/www.cdc.gov\/other\/accessibility.html)\n- [External Links](https:\/\/www.cdc.gov\/Other\/disclaimer.html#exit-notification)\n- [Privacy](https:\/\/www.cdc.gov\/other\/privacy.html)\n- [Web Policies](https:\/\/www.cdc.gov\/Other\/policies.html)\n\n- [FOIA](https:\/\/www.cdc.gov\/foia\/)\n- [OIG](https:\/\/oig.hhs.gov\/)\n- [No Fear Act](https:\/\/www.cdc.gov\/oeeowe\/no-fear-act\/)\n- [Nondiscrimination](https:\/\/www.cdc.gov\/other\/nondiscrimination.html)\n- [Vulnerability Disclosure Policy](https:\/\/www.hhs.gov\/vulnerability-disclosure-policy\/index.html)\n\n[Languages](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#languages)\n\n[Languages](https:\/\/www.cdc.gov\/other\/other-languages\/index.html)\n\n- [Español](https:\/\/www.cdc.gov\/spanish\/)\n\n[Language Assistance](https:\/\/www.cdc.gov\/other\/language-assistance.html)\n\n- [Español](https:\/\/www.cdc.gov\/other\/language-assistance.html#Spanish)\n- [繁體中文](https:\/\/www.cdc.gov\/other\/language-assistance.html#Chinese)\n- [Tiếng Việt](https:\/\/www.cdc.gov\/other\/language-assistance.html#Vietnamese)\n- [한국어](https:\/\/www.cdc.gov\/other\/language-assistance.html#Korean)\n\n- [Tagalog](https:\/\/www.cdc.gov\/other\/language-assistance.html#Tagalog)\n- [Русский](https:\/\/www.cdc.gov\/other\/language-assistance.html#Russian)\n- [العربية](https:\/\/www.cdc.gov\/other\/language-assistance.html#Arabic)\n- [Kreyòl Ayisyen](https:\/\/www.cdc.gov\/other\/language-assistance.html#Haitian)\n\n- 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[Contact CDC](https:\/\/www.cdc.gov\/cdc-info\/index.html)\n\n[About CDC](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#mobile-footer-aboutCDC)\n\n- [Pressroom](https:\/\/www.cdc.gov\/media\/)\n- [Organization](https:\/\/www.cdc.gov\/about\/organization\/)\n- [Budget & Funding](https:\/\/www.cdc.gov\/budget\/)\n- [Careers & Jobs](https:\/\/jobs.cdc.gov\/index.html)\n- [About CDC](https:\/\/www.cdc.gov\/about\/)\n\n[Policies](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#mobile-footer-policies)\n\n- [Accessibility](https:\/\/www.cdc.gov\/other\/accessibility.html)\n- [External Links](https:\/\/www.cdc.gov\/Other\/disclaimer.html#exit-notification)\n- [Privacy](https:\/\/www.cdc.gov\/other\/privacy.html)\n- [Web Policies](https:\/\/www.cdc.gov\/Other\/policies.html)\n\n- [FOIA](https:\/\/www.cdc.gov\/foia\/)\n- [OIG](https:\/\/oig.hhs.gov\/)\n- [No Fear Act](https:\/\/www.cdc.gov\/oeeowe\/no-fear-act\/)\n- [Nondiscrimination](https:\/\/www.cdc.gov\/other\/nondiscrimination.html)\n- [Vulnerability Disclosure Policy](https:\/\/www.hhs.gov\/vulnerability-disclosure-policy\/index.html)\n\n[Languages](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#mobile-footer-languages)\n\nLanguages\n\n- [Español](https:\/\/www.cdc.gov\/spanish\/)\n\nLanguage Assistance\n\n- [Español](https:\/\/www.cdc.gov\/other\/language-assistance.html#Spanish)\n- [繁體中文](https:\/\/www.cdc.gov\/other\/language-assistance.html#Chinese)\n- [Tiếng Việt](https:\/\/www.cdc.gov\/other\/language-assistance.html#Vietnamese)\n- [한국어](https:\/\/www.cdc.gov\/other\/language-assistance.html#Korean)\n- [Tagalog](https:\/\/www.cdc.gov\/other\/language-assistance.html#Tagalog)\n- [Русский](https:\/\/www.cdc.gov\/other\/language-assistance.html#Russian)\n- [العربية](https:\/\/www.cdc.gov\/other\/language-assistance.html#Arabic)\n- [Kreyòl Ayisyen](https:\/\/www.cdc.gov\/other\/language-assistance.html#Haitian)\n- [Français](https:\/\/www.cdc.gov\/other\/language-assistance.html#French)\n- [Polski](https:\/\/www.cdc.gov\/other\/language-assistance.html#Polish)\n- [Português](https:\/\/www.cdc.gov\/other\/language-assistance.html#Portuguese)\n- [Italiano](https:\/\/www.cdc.gov\/other\/language-assistance.html#Italian)\n- [Deutsch](https:\/\/www.cdc.gov\/other\/language-assistance.html#German)\n- [日本語](https:\/\/www.cdc.gov\/other\/language-assistance.html#Japanese)\n- [فارسی](https:\/\/www.cdc.gov\/other\/language-assistance.html#Farsi)\n- [English](https:\/\/www.cdc.gov\/other\/language-assistance.html#English)\n\n[Archive](https:\/\/www.cdc.gov\/covid\/about\/reinfection.html#mobile-footer-archive)\n\n- [CDC Archive](https:\/\/archive.cdc.gov\/)\n- [Public Health Publications](https:\/\/stacks.cdc.gov\/)\n\n[![Centers for Disease Control and Prevention](https:\/\/www.cdc.gov\/TemplatePackage\/5.0\/img\/logo\/cdc-logo-tag-right.svg)](https:\/\/www.cdc.gov\/)\n\n[HHS.gov](https:\/\/hhs.gov\/) [USA.gov](https:\/\/usa.gov\/)","attrs_readable_markdown":"- Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again.\n- You can get reinfected multiple times.\n- Staying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness.\n\n![Healthcare provider taking nasal swab test of patient in clinic](https:\/\/www.cdc.gov\/covid\/media\/images\/2024\/07\/GettyImages-1344723275_hi-res-612x612-1.png)\n\n## Overview\nReinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with [COVID-19 vaccines](https:\/\/www.cdc.gov\/covid\/vaccines\/index.html) and treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness.\n\nOnce you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization.\n\nAs the virus evolves, new [variants](https:\/\/www.cdc.gov\/covid\/php\/variants\/index.html) with the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare.\n\n## How to protect yourself and others\nCDC recommends that all people use [core prevention strategies](https:\/\/www.cdc.gov\/respiratory-viruses\/prevention\/index.html) to prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19.\n\n## COVID-19 testing for people with a recent history of infection\nInterpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed [testing guidance](https:\/\/www.cdc.gov\/covid\/testing\/index.html) explaining which type of test you should take under different circumstances.\n\nJune 14, 2024","meta_canonical":null}

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Boilerpipe Text	Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again. You can get reinfected multiple times. Staying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness. Overview Reinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with COVID-19 vaccines and treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness. Once you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization. As the virus evolves, new variants with the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare. How to protect yourself and others CDC recommends that all people use core prevention strategies to prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19. COVID-19 testing for people with a recent history of infection Interpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed testing guidance explaining which type of test you should take under different circumstances. June 14, 2024
Markdown	[Skip directly to site content](https://www.cdc.gov/covid/about/reinfection.html#content) [Skip directly to search](https://www.cdc.gov/covid/about/reinfection.html#cdc-search__input) [Skip directly to On This Page](https://www.cdc.gov/covid/about/reinfection.html#first-on-this-page) ![](https://www.cdc.gov/TemplatePackage/5.0/img/uswds/us_flag_small.png) An official website of the United States government [Here's how you know](https://www.cdc.gov/covid/about/reinfection.html#gov-notice) ![](https://www.cdc.gov/TemplatePackage/5.0/img/uswds/icon-dot-gov.svg) Official websites use .gov A .gov website belongs to an official government organization in the United States. ![](https://www.cdc.gov/TemplatePackage/5.0/img/uswds/icon-https.svg) Secure .gov websites use HTTPS A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites. [![Centers for Disease Control and Prevention. CDC twenty four seven. 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) # About Reinfection June 14, 2024 [Español](https://espanol.cdc.gov/enes/covid/about/reinfection.html) For Everyone ## Key points - Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again. - You can get reinfected multiple times. - Staying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness. ![Healthcare provider taking nasal swab test of patient in clinic](https://www.cdc.gov/covid/media/images/2024/07/GettyImages-1344723275_hi-res-612x612-1.png) ## Overview Reinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with [COVID-19 vaccines](https://www.cdc.gov/covid/vaccines/index.html) and treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness. Once you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization. As the virus evolves, new [variants](https://www.cdc.gov/covid/php/variants/index.html) with the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare. ## How to protect yourself and others CDC recommends that all people use [core prevention strategies](https://www.cdc.gov/respiratory-viruses/prevention/index.html) to prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19. Keep Reading [How to Protect Yourself and Others](https://www.cdc.gov/covid/prevention/index.html) ## COVID-19 testing for people with a recent history of infection Interpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed [testing guidance](https://www.cdc.gov/covid/testing/index.html) explaining which type of test you should take under different circumstances. ## On This Page - [Overview](https://www.cdc.gov/covid/about/reinfection.html#cdc_disease_basics_overview-overview "Overview") - [How to protect yourself and others](https://www.cdc.gov/covid/about/reinfection.html#cdc_disease_basics_quick_facts_callout_callout-how-to-protect-yourself-and-others "How to protect yourself and others") - [COVID-19 testing for people with a recent history of infection](https://www.cdc.gov/covid/about/reinfection.html#cdc_disease_basics_testing_screening-covid-19-testing-for-people-with-a-recent-history-of-infection "COVID-19 testing for people with a recent history of infection") ## Related Pages - [About COVID-19](https://www.cdc.gov/covid/about/index.html) - [Symptoms](https://www.cdc.gov/covid/signs-symptoms/index.html) - [People with Certain Medical Conditions and COVID-19](https://www.cdc.gov/covid/risk-factors/index.html) - [COVID-19 Vaccines](https://www.cdc.gov/covid/vaccines/index.html) - [Testing](https://www.cdc.gov/covid/testing/index.html) [View All Covid](https://www.cdc.gov/covid/site.html#gen) [Symptoms](https://www.cdc.gov/covid/signs-symptoms/index.html) June 14, 2024 [Sources](https://www.cdc.gov/covid/about/reinfection.html#content-sources) [Print](https://www.cdc.gov/covid/about/reinfection.html#print) [Share](https://www.cdc.gov/covid/about/reinfection.html#share) [Facebook](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html "Share to Facebook") [LinkedIn](https://www.linkedin.com/shareArticle?url=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html&title=About%20Reinfection "Share to LinkedIn") [Twitter](http://twitter.com/share?url=https%3A%2F%2Fwww.cdc.gov%2Fcovid%2Fabout%2Freinfection.html&text=About%20Reinfection "Share to Twitter") [Syndicate](https://tools.cdc.gov/medialibrary/index.aspx#/sharecontent "Embed this Page") Content Source: [National Center for Immunization and Respiratory Diseases](https://www.cdc.gov/ncird/index.html); [Coronavirus and Other Respiratory Viruses Division](https://www.cdc.gov/ncird/divisions-offices/index.html) ## Related Pages - [About COVID-19](https://www.cdc.gov/covid/about/index.html) - [Symptoms](https://www.cdc.gov/covid/signs-symptoms/index.html) - [People with Certain Medical Conditions and COVID-19](https://www.cdc.gov/covid/risk-factors/index.html) - [COVID-19 Vaccines](https://www.cdc.gov/covid/vaccines/index.html) - [Testing](https://www.cdc.gov/covid/testing/index.html) [View All Covid](https://www.cdc.gov/covid/site.html#gen) Back to Top ## [Covid](https://www.cdc.gov/covid/index.html) COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly. 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Readable Markdown	- Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again. - You can get reinfected multiple times. - Staying up to date on vaccines and seeking treatment for a COVID-19 infection can help decrease the risk of experiencing severe illness. ![Healthcare provider taking nasal swab test of patient in clinic](https://www.cdc.gov/covid/media/images/2024/07/GettyImages-1344723275_hi-res-612x612-1.png) ## Overview Reinfections with the virus that causes COVID-19 are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others. Staying up to date with [COVID-19 vaccines](https://www.cdc.gov/covid/vaccines/index.html) and treating COVID-19 illness within a few days of when symptoms start decrease your risk of experiencing severe illness. Once you have had COVID-19, your immune system responds in several ways. This immune response can protect you against reinfection for several months, but this protection decreases over time. People with weakened immune systems who get an infection may have a limited immune response or none at all. Protection against severe COVID-19 illness generally lasts longer than protection against infection. This means even if you get infected again, your immune response should help protect you from severe illness and hospitalization. As the virus evolves, new [variants](https://www.cdc.gov/covid/php/variants/index.html) with the ability to evade your existing immunity can appear. This can increase your risk of reinfection. Reinfection can occur as early as several weeks after a previous infection, although this is rare. ## How to protect yourself and others CDC recommends that all people use [core prevention strategies](https://www.cdc.gov/respiratory-viruses/prevention/index.html) to prevent COVID-19 and other respiratory viruses, including if you have previously had COVID-19. ## COVID-19 testing for people with a recent history of infection Interpreting new positive test results in the first 90 days after a previous infection (that is, to identify a possible reinfection) can be challenging. CDC has developed [testing guidance](https://www.cdc.gov/covid/testing/index.html) explaining which type of test you should take under different circumstances. June 14, 2024
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