The new COVID-19 subtypes protect antibodies against vaccination and previous Omicron infections.
"We found a 3-fold reduction in inactive antibodies in BA4 and BA5 vaccines compared to BA1 and BA2, which is much lower than the original COVID-19 variants,"
said Dr. Tax. Baruch, the author and director of the paper, wrote. CNN e-mail from the Center for Virologic and Fax Research at Boston.
Omicron BA.4 and BA.5 appear to prevent antibody reactions between people with a previous COVID-19 infection and those who are fully vaccinated and promoted.
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Research released last week showed that the new BA.5 subvariant was responsible for a threefold increase in cases in NSW since early June, above BA.2 as the most common type in the state.
the COVID-19 vaccine is still expected to provide significant protection against serious diseases, and vaccine manufacturers are working on it.