U.S. health authorities on Wednesday approved a new version of Pfizer’s and Moderna’s COVID-19 vaccines for the omicron variant to quickly launch a new immunization campaign.
Two updated vaccines have been approved for booster doses starting at 12 years of age. pfizer and from 18 years old modernThis is stated in a statement by the US Food and Drug Administration (FDA).
“Provide Greater Protection”
New generation vaccines target both the original strain of COVID-19 and its BA.4 and BA.5 subvariants. omicron.
Therefore, they should “provide greater protection against omicron variant currently circulating,” the FDA wrote.
Earlier this summer, the US Department of Health announced a purchase of 105 million doses of the vaccine. pfizer and 66 million modern wear in autumn and winter.
Vaccines have not yet been recommended by the Centers for Disease Control and Prevention (CDC), the main US public health agency.
The CDC convened a committee of independent experts to discuss the matter on Thursday.
After these consultations, agency director Rochelle Walensky will be responsible for giving it the final green light.
This new version of immunizers may be available next week in the country.
rapid evolution of the virus
The vaccines currently circulating were developed to protect against the original strain of the virus, which was first reported in late 2019 in Wuhan, China.
But little by little, they became less effective against variants that emerged over time due to the rapid evolution of the virus.
Unlike the alpha and delta options, which have given way over time, omicron and its subvariants have gradually come to dominate infections in 2022 worldwide.
pfizer D modern they have also submitted an application for authorization of this updated version of their vaccine to the European Medicines Agency (EMA).
(According to AFP)
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Source: RPP
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