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Colonel
An interesting new study from Israel... People have been worried about declining immune responses of the vaccines. An interesting observation of this study is that these COVID vaccines may continue to work for an extended period of time.
Specifically, many patients who have been infected with COVID-19 show declining antibody levels after they recover. This declining antibody level has been worrying a lot of people. When you have no antibody left in your body, how can you fight another future infection? Similarly, if you cannot even maintain a good level of antibody after an actual infection, how can you maintain any effective amount of antibodies after a relatively mild "infection" of vaccination?? This, of course, has been worrisome to many. This new study included 17 subjects who have recovered from a prior actual COVID-19 infection. Before their Pfizer vaccination, they showed almost no antibody against COVID, suggesting that they might be susceptible to another infection. Yet, 21 days after their first Pfizer dose, huge amount of antibodies against COVID have been found in these people. Their anti-COVID antibody levels are 10 times higher than those without a prior COVID infection and just a plain 1 vaccine dose. This findings suggest that, although your antibody levels slowly decline after you recover from an infection, your immune cells still remember the infection well. Upon another potential infection, your immune cells respond quickly to the second infection. This also suggests that vaccine should also work in a similar fashion. So sometime after your vaccination, your antibody level may slowly disappear. But that does not mean you have lost immunity against COVID. IF/when your body sees another batch of COVID virus, your immune cells will respond quickly to deal with the new infection.
Of course, their new study only included 17 subjects with a prior infection. So keep in mind the small sample size.
Specifically, many patients who have been infected with COVID-19 show declining antibody levels after they recover. This declining antibody level has been worrying a lot of people. When you have no antibody left in your body, how can you fight another future infection? Similarly, if you cannot even maintain a good level of antibody after an actual infection, how can you maintain any effective amount of antibodies after a relatively mild "infection" of vaccination?? This, of course, has been worrisome to many. This new study included 17 subjects who have recovered from a prior actual COVID-19 infection. Before their Pfizer vaccination, they showed almost no antibody against COVID, suggesting that they might be susceptible to another infection. Yet, 21 days after their first Pfizer dose, huge amount of antibodies against COVID have been found in these people. Their anti-COVID antibody levels are 10 times higher than those without a prior COVID infection and just a plain 1 vaccine dose. This findings suggest that, although your antibody levels slowly decline after you recover from an infection, your immune cells still remember the infection well. Upon another potential infection, your immune cells respond quickly to the second infection. This also suggests that vaccine should also work in a similar fashion. So sometime after your vaccination, your antibody level may slowly disappear. But that does not mean you have lost immunity against COVID. IF/when your body sees another batch of COVID virus, your immune cells will respond quickly to deal with the new infection.
Of course, their new study only included 17 subjects with a prior infection. So keep in mind the small sample size.
