How Long Will Covid Vaccine Protect Me. This is a major issue that is now being studied carefully by scientists though they warn it may take some time before they can. After receiving a COVID-19 vaccine it takes weeks for your immunity to build. The study used data from more than 1. The vaccine also was 85 effective at preventing severe disease with the COVID-19 virus at least 28 days after vaccination.
Regardless of which vaccine you get you wont reach full protection until two weeks after your second or final dose. What I can tell you is that the first people to get the new vaccine back in March in the initial safety trial are still protected. More recent studies indicate that people whove had COVID-19 have good antibody and other immune memory which translates into protection for at least eight to nine months which was as long as could be analyzed this far into the pandemic. We dont know how long T-cell immunity persists after COVID-19 vaccination or infection but theres evidence that T cells last for quite a while. On 24 February the New York Times reported that the Johnson. How long does a COVID-19 vaccine last.
The AstraZeneca vaccine was shown to offer 77pc protection a month after the second dose decreasing to 67pc after five months.
In April a report in The New England Journal of Medicine NEJM said that in all 33 participants who had received the Moderna vaccine during the Phase I trial protection remained high for six months after the second shot. What I can tell you is that the first people to get the new vaccine back in March in the initial safety trial are still protected. This vaccine is for people age 18 and older. In this group the shot was 508 effective at preventing COVID-19 with symptoms for up to 14 days after the first dose and 921 effective after 14 days. After receiving a COVID-19 vaccine it takes weeks for your immunity to build. The latest analysis from the Zoe Covid study showed the Pfizer jab has 88pc effectiveness a month after the second dose but after five to six months protection decreased to 74pc.