Faucie: Three dose vaccine significantly increases protection against Coddy-19

The goal is to provide a strong example for Americans who have to take the strengthening dose, even though millions have not yet been vaccinated with the first. The head of the White House rejected criticism that the United States should distribute more vaccines around the world before allowing strengthening doses in the country.

We're helping, we're doing more than any other country in the world. We'll have over 1 billion vaccines and we'll be part of our”, Biden said.

The Centre for Disease Control and Prevention supported last week the release of the third dose of Pfizer vaccine for Americans over the age of 65, people with health problems, those working in high risk countries with infection and institutional environments. Biden said his 78-year-old wife would also receive

Quick, backup dosage. Scientists are divided over the need for a third dose when many in the United States remain unexplored, yet senior infection expert Anthony Fauci is convinced of the efficiency of such a vaccine regime.

“You're protected with two doses, but the third takes longer. The U.S. and Israel data show a decline in immunity over time. Therefore, individual categories would develop stronger protections if they received a third dose, six months after the second,”, Fauci said.

According to American regulators, only people who have received the latest dose of Pfizer vaccine at least six months ago could get the third. The FDA has not yet considered Moderna's application for third doses, while Johnson & Johnson has not yet applied for one.