NEW YORK – The American Immunization Practices Advisory Committee (CDC) has opened a new front in the US Covid-19 vaccination campaign at the end of a two-day online briefing. After consultations and votes, the CDC has decided to approve the third Pfizer dose for those over 65 and for those living in long-term health care facilities: no mention for now on health workers.
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However, scientists reiterated that it is the complete vaccination of those who have so far refused the inoculations, and not the third dose, the main way out of the pandemic. “We could tip the balance a little bit by giving people a booster dose,” said Dr. Helen Talbot, associate professor of medicine at Vanderbilt University. But, he added, “the hospitals are full because people are not vaccinated”. The data on the benefits of the third dose are not yet completely clear: according to the data presented at the meeting, it would help prevent more than 2 thousand hospitalizations out of a million doses administered. But there is still no clarity on the duration of the effectiveness of the booster (the recall).
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The CDC’s suggested strategy comes after weeks of disagreements and public debates. In mid-August, the American president Joe Biden had announced a plan that provided for the third dose for categories at risk and on the front line against Covid-19. Scientists and authorities pointed out the lack of in-depth studies and research. Yesterday, the Food and Drug Administration (Fda), the American body for the control of drugs, authorized the third Pfizer dose for ages 65 and up and for categories on the front line against Covid-19 such as healthcare professionals.
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But it wasn’t clear how long the additional protection from a booster would last, raising the prospect that boosters would have to be given repeatedly.
But some committee members said there was little evidence to suggest that vaccinated teachers and even health care workers were at risk of repeated exposure to the virus. The decision reflected fears that such a broad recommendation would actually open the door to a recall campaign for all adults.
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