For people vaccinated with Pfizer-Biontech serum, the risk of being infected with Covid increases starting 3 months after the second dose. To support this thesis is a study carried out by Israeli researchers which highlights even more the need to carry out the so-called "booster" dose.
This drop in antibodies "should not cause concern - explains Gabriele Mereu, head of Vaccinoprophylaxis Ats Sud Sardegna," much less suggesting that the effectiveness of the vaccine is limited. This vaccine - always the same from the beginning - is proving to be up to scratch, it works, it is well tolerated, and so far there has been no need to remodel it ". So you can get sick but the protection "from symptomatic Covid, from serious illness, from death remains".
The proof is the fact that many doctors and nurses, who received the vaccine in the first months of the year, "tested positive in April / May, but none ended up in intensive care".
Initially the immunity we were talking about referred to a year "but they were projections related to the Alpha variant, then the virus mutated, became more aggressive, and required a stronger response, that's why it was decided to do the third dose after six months and then after five. A more than correct average ".
(Unioneonline)
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