United States of America.  FDA approves combination of different COVID-19 vaccines

The Food and Drug Administration announced Wednesday that it will allow various companies’ COVID-19 vaccines to be used as a booster dose. For a Moderna booster dose, the Food and Drug Administration recommends using half the “regular” dose of the product.

The announcement is based on the results of a National Institutes of Health (NIH)-funded study published last week. They pointed out that giving different vaccines can enhance immunity against the Corona virus. This is especially true for people who have been vaccinated with J&J, who, the results suggest, may benefit most from a second injection of Moderny. The additional dose of Moderna was given 76 times the level of antibody, while the second dose of J&J was four times higher.

The FDA on Wednesday also followed the advice of an expert advisory panel, which recommended approval of a third dose of the Moderna vaccine for people over 65 who are at risk of contracting COVID-19 due to a chronic illness or occupation. The extra dose should not be applied 6 months before the last vaccination. Back in September, the US Food and Drug Administration approved the use of a third dose of the Pfizer vaccine, under the same conditions as Moderna.

Director of Research on Biological Products, Dr Peter Marks, did not rule out that over time additional doses of the Pfizer and Moderna vaccines would also be made available to younger age groups.

The agency also approved the second single-dose dose of Johnson & Johnson for all adults on Wednesday. Patients vaccinated with J&J should take a second dose at least 2 months after the first dose.

– While the epidemic continues to strike our country, scientific research shows that vaccination remains the safest and most effective way to prevent COVID-19 (…) Available data indicate reduced immunity in some groups of fully vaccinated people. For the US Food and Drug Administration, availability of these approved doses is important for protection against COVID-19.

An announcement from the Centers for Disease Control and Prevention (CDC) is also expected soon.

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