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The United States warns that the effectiveness of vaccines decreases over time and starts with the third dose

The Joe Biden government will begin supplying a Third dose of coronavirus booster vaccines to all Americans beginning Sept. 20, senior health officials announced Wednesday after concluding that a booster is needed to combat the Delta variant.

In a joint statement by America’s leading public health and medical experts, the government confirmed plans to begin offering the booster vaccines after review a wide range of data.

The plan, what applies only to Pfizer and Moderna vaccines, requires all Americans to receive a booster injection eight months after receiving their second doses. Health workers, those who live in nursing homes and the elderly they are the first that will receive the reinforcement from September 20.

Officials said they hope a booster injection will be needed for people who received the Johnson & Johnson vaccinebut they are still reviewing the data and will announce plans at a later date.

Protection falls

“The available data make it very clear that protection against SARS-CoV-2 infection begins to decline over time after the initial doses of vaccination, and in association with the prevalence of the Delta variant, we are beginning to see evidence of reduced protection against mild and moderate disease, “the statement said.

He continues: “For that reason, we conclude that a booster injection will be needed to maximize protection of the vaccine and prolong its durability “.



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Source: Johns Hopkins
Chart: Flourish | Infographic: Clarion

The application of a third dose was something that had been talked about for weeks, especially before the advance of the Delta variable, that produced a peak of cases in the United States, especially among the unvaccinated population.

Vaccines stored

This country can apply a third dose because there are millions still stored that have no destination. The use of a third dose, which is already applied in some countries such as Israel, has opened a global debate on the advisability of this supply in the richest countries, while much of the world not yet immunized and requires vaccinations.

The statement is signed by eight health officials, including Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC); Vivek H. Murthy, general surgeon, and Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases.

The plan to offer booster vaccines is subject to Food and Drug Administration (FDA) approval, which is expected in the coming weeks.

Washington, correspondent



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