Corona virus in the world. Research: Booster dose significantly increases protection against severe infection with coronavirus variants

Scientists have already identified several worrisome variants of SARS-CoV-2 (VOC) that partially escape neutralization caused by current vaccines. Previous studies have also shown that vaccines provide reduced protection against accidental infection with SARS-CoV-2 variants.

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Australian researchers from the University of New South Wales, the University of Sydney and the University of Melbourne conducted a meta-analysis of 24 published laboratory and clinical studies to see if in vitro virus neutralization titer still predicted the degree of protection offered by vaccines against infection. SARS-CoV- variants 2. It turned out to be so.

A booster vaccination — a so-called “booster” — against COVID-19 provides “robust protection against severe infection” with variants of the worrisome SARS-CoV-2 virus (VOC), at least in the medium term, according to a study published by “The Lancet.”

As other analyzes have shown, good protection against current variants of concern can be achieved through vaccination with existing vaccines (targeting mutations of primary virus variants) and administration of another dose of these vaccines, which have been passed on.

He stressed that “vaccines that target novel variants of concern may be required in the future, but current vaccines remain an effective way to enhance immunity against current variants of concern.”