Covid, Pregliasco: “Making boosters even if not the latest vaccine model”

Covid, Pregliasco: “Making boosters even if not the latest vaccine model”
Covid, Pregliasco: “Making boosters even if not the latest vaccine model”
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“With vaccines we will always be chasing the variants” Covid, “which we see very frequent over time. Already for the flu vaccine we have two annual appointments in February and September to update the composition for the two seasonal winter epidemics of the two hemispheres”. Similarly, the first update for Covid vaccines arrived today, with the approval in the EU of the bivalents of Pfizer-BioNTech and Moderna adapted to Omicron 1, a variant that no longer circulates today. But it doesn’t matter, virologist Fabrizio Pregliasco highlights at Adnkronos Salute: “An image comes to mind: if a person needs a new phone because his smartphone has broken, he doesn’t necessarily have to wait for the new model. Unfortunately, there is a similar narrative on vaccines, according to which the current model is already old and unusable “.

“The current vaccine – points out the professor of Hygiene of the State University of Milan and medical director of Irccs Galeazzi – has already shown that give it a boost as a fourth dose boosterand the same applies to the fourth dose with this vaccine planned for Omicron 1 “, which according to an exploratory analysis cited by the British regulatory body in its approval of the adapted Moderna booster, would seem to generate a good immune response against all the Omicron sub-variants, including Omicron 5.

“We will always be a bit late – concludes Pregliasco – We will need to understand what the revaccination perspective will be. I, in terms of acceptability and practicability, imagine an annual vaccination with the most updated vaccine available in the autumn-winter appointment. the proposal will be to recommend vaccination “, not to impose it,” with an audience comparable to that of the flu “.

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The article is in Italian

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