According to anonymous sources quoted by the daily, it is the Food and drug administration (FDA), the agency responsible for authorizing the marketing of drugs, which would have pushed Pfizer to make the request. The vaccine could be available in the United States from the end of February.
Three doses needed
For the time being, the injection of two doses in children aged 2, 3 and 4 years does not trigger a sufficient immune response according to the first studies. On the other hand, in children aged 6 months to 2 years, both doses create this immune response comparable to that of adults.