Vaccinating people who have recovered from COVID-19
The best method to know whether a person who has recovered from COVID-19 needs a vaccine is check the antibody titers against SARS-CoV-2. If is low, then such people can also get vaccines.
However, due to reports severe reactions after vaccinations in such COVID-19 convalescent people, it is advised that the vaccination in such persons should be delayed for THREE Months and only a single dose be given.
If you're actively sick with COVID-19, or if you've just recovered, hold off for a while before getting vaccinated. Experts recommend that you wait until you are fully recovered from your infection and are no longer in isolation before you receive a COVID-19 vaccine. https://www.hackensackmeridianhealth.org/HealthU/2021/01/20/recovered-from-covid-19-why-you-still-need-a-vaccine/
Will a COVID-19 vaccine prevent me from getting sick again?
Yes, to some extent. Both mRNA vaccines were found to be about 95% effective at protecting against COVID-19. The vaccines train your body’s immune system to identify a spike protein on the coronavirus that causes COVID-19 and fight it off, should it enter your system. You should expect to experience the full effects of the vaccine’s immunity potential about two weeks after you receive the second dose of the vaccine. Even if you do get an infection after vaccination, the vaccine will likely prevent the more severe forms of Covid. https://www.hackensackmeridianhealth.org/HealthU/2021/01/20/recovered-from-covid-19-why-you-still-need-a-vaccine/
The acquired protective immunity as a result of SARS-CoV-2 infection is short-lived. Therefore, vaccination of already recovered person may provide protection against re-infection, especially from new variants of SARS-CoV-2.
Yes, people should get vaccinated regardless of whether they already had COVID-19.
While COVID-19 infection provides the body natural, systematic immunity by building protective antibodies against it, however, with limited research, it's still unknown as to how long does natural immunity last. Cases of reinfection have emerged across the world, so there are strong odds of catching COVID-19 more than once. This is where vaccine driven immunity can help. Getting vaccinated, even after you have had COVID-19 may work to prevent future bouts of COVID-19.
The following study conclude that the receipt of at least one dose of the Pfizer (BNT162b2) vaccine lowers the risk of recurrent infection in patients recovered from COVID-19.
Article Effectiveness of the BNT162b2 Vaccine after Recovery from Covid-19
In fact, a person who has had a previous COVID-19 is better protected by the COVID-19 vaccine by achieving higher SARS-CoV-2 protective antibodies compared to a person who has completed a COVID-19 booster after primary series of 2 vaccine shots.
To have insight into this intriguing issue, please gander through these helpful articles:
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Dear Getu Habte . Yes . See the following useful link: https://www.hackensackmeridianhealth.org/en/HealthU/2021/01/20/recovered-from-covid-19-why-you-still-need-a-vaccine
The following link is also very useful: https://www.google.com/amp/s/amp.scmp.com/news/china/science/article/3169650/do-i-still-need-vaccine-or-booster-if-ive-already-been-infected