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The concentration of antibodies to SARS-CoV-2 in six months is reduced by 10 times

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This indicates the need for revaccination.

This once again confirms the need for revaccination, which is especially needed by vulnerable segments of the population.

Israeli researchers found that the typical concentration of antibodies to SARS-CoV-2 falls six months after vaccination. Moreover, about ten times. This is stated on the site medRxiv.

Thus, the effectiveness of the Pfizer vaccine can decline faster than that of Moderna and other drugs.

More than 8.3 thousand Israelis participated in the study, who received two injections of the Pfizer vaccine from January to July this year.

It turned out that the level of antibodies obtained after the Pfizer vaccine drops rapidly over time. In particular, in the blood of the vaccinated Israelis there were over 14 thousand antibodies in the first month after vaccination, and after six months they became ten times less.

It also became known that elderly Israelis who received vaccinations in January-February were infected with the coronavirus twice as often as those who were vaccinated in March-May.

“All this confirms the results of other observations of the decline in the effectiveness of the Pfizer vaccine and speaks of the need for a complete re-vaccination of the population of Israel, which is especially needed by the elderly and members of various vulnerable groups of the population,” the scientists concluded.

Recall earlier a team of American scientists discovered the antibody, capable of combating not only various types of SARS-CoV-2, but also strains of coronavirus infection.

The vaccinated person needs eight times more antibodies to block the Delta strain

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