Covid vaccine, third dose in the US from 20 September

In the United States, administration of the third dose of Covid vaccine will begin on September 20. This was announced by the highest health authorities in a joint statement. The third dose will be injected eight months after the second injection with the Moderna and Pfizer vaccine. We will therefore start with health personnel and retirement home guests who were the first to be vaccinated. “The available data clarifies that protection against Sars-CoV-2 begins to decline over time after the first vaccination doses. In association with the predominance of the Delta variant, we begin to see evidence of reduced protection in the face of mild and moderate “, reads the statement released by the main health authorities, including the director of the Centers for Disease Control and Prevention (CDC), Rochelle Walensky, and the director of the National Institute for Allergy and Infectious Diseases, Anthony Fauci. A new injection will also be needed for the Johnson & Johnson single-dose, but since this vaccine has been administered since March, it will be discussed in November.