Left arm or right arm? A choice avark that can quickly resort to the headache in front of the needle. But a study published in the review cell, detected by the daily life of the pharmacist, shows that the choice of the arm really does not matter … at least not in the first dose of vaccine.
The conclusion of the Australian study: the injection of a second dose of a vaccine in the same arm as the first “led to a” faster “antibody secretion, that is what our organisms use to defend themselves. A faster response than when the second bite takes place” in the opposite arm “in the first.
After demonstrating their theory in mice, Australian researchers led evidence in humans, vaccinating COVID-19, a total of 30 adults infected with the virus. These received the Pfizer vaccine, in two doses, sometimes twice on the same arm, sometimes in one and then in the other. The previously demonstrated results have been confirmed.
“It is important if it is not essential to remember in the same arm”
For viruses with many mutations “such as Coronavirus or the flu”, “it is important if it is not essential to remember in the same arm,” Jean-Daniel Lelièvre, a professor of immunology, explains to Le Figaro.
How to explain this mechanism? B lymphocytes, white blood cells, small soldiers of the immune response, are housed in the ganglia near the place of the first vaccination. These are reactivated by the new dose and can act faster.
“We do not know how much this effect lasts, so for a fairly close reminder we advise being vaccinated in the same arm, but for reminders, they say 10 years later, we need to have more experiences before guaranteeing it,” cancels the professor to classify immunology preéroning in Sydney. The main thing remains to be vaccinated.
Source: BFM TV
