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This week, the American Medical Journal “New England Journal of Medicine” published Conclusions From analyzes conducted in Israel and Qatar. Both studies confirm reduced immunity after the Pfizer vaccine.
Immunity drops rapidly after vaccination with Pfizer
And they confirm that immune protection is provided in two doses vaccinations COVID-19 Pfizer backed off after about two months. However, it still provides powerful protection against severe illness, hospitalization, and death.
A study from Israel included 4,800 health professionals and found that antibody levels dropped sharply after two doses vaccinations Especially among men, people 65 years of age or older and people who are immunosuppressed” – Quote evaluated by CNN Dr. Gilly Regev Yochai of Sheba Medical Center and colleagues.
“We found that a significant and rapid decrease in the response to the (Pfizer) BNT162b2 vaccine was observed within a few months of vaccination,” the researchers noted.
They also noticed work employment Title Many vaccines, such as measles, mumps and rubella, have shown only a small decrease each year, by 5 to 10 percent. The level of neutralizing antibodies.
The New England Journal of Medicine also cites the results of a study conducted in Qatar.
Dr. Laith Abu-Raddad of Weill Cornell Medicine in Qatar confirmed that “protection against infection with the Pfizer BNT162b2 vaccine increases rapidly after the first dose, reaches its peak in the first month after the second dose, and then decreases gradually during the following months.” peers.
They explained that the decline appears to be accelerating after the fourth month, reaching a low of about 20%. in the following months.
Vaccinators also need to protect themselves from the coronavirus
An Israeli study also found that immunity in people who have been vaccinated after infection with COVID-19 lasts longer. It is especially effective in people who have recovered from the infection and then continue to vaccinate themselves.
Scientists from Qatar also linked poor protection over time to the behavior of the vaccinated people.
“It is assumed that vaccinated people have a higher rate of social contact than unvaccinated people and may also comply with safety measures to a lesser extent. (…) This behavior may reduce the actual efficacy of the vaccine compared to its biological efficacy, which could explain the degraded protection” .
They stressed the need to prepare for new influxes of COVID-19.
The researchers warned that “the results suggest that large parts of the vaccinated population may lose protection from infection in the coming months, which may increase the possibility of new epidemic waves.” (PAP, ad / zm /)
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