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Omicron subvariants that are more infectiousness are causing more than 70% of U.S. infections

Omicron subvariants that more easily dodge immunity are causing more than 70% of U.S. infections

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The BQ.1 and BQ.1.1 subvariants taken together are now responsible for 68% of new cases, according to data published by the Centers for Disease Control and Prevention on Friday. The XBB subvariant is causing 4.7% of new Covid infections.

Scientists, in several independent studies, have described the BQ and XBB subvariants as more adept at evading immunity from vaccination and infection than prior versions of the virus.

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ALSO SEE: Antivirals—not monoclonal antibodies—neutralize Omicron BQ.1.1, XBB

 

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Omicron boosters are weaker against BQ.1.1 subvariant that is rising in U.S., study finds

Omicron boosters are weaker against BQ.1.1 subvariant that is rising in U.S., study finds

Covid shots designed to protect against the omicron variant trigger a weaker immune response against the rapidly emerging BQ.1.1 subvariant than the previously dominant strain, according to a new lab study.

Scientists at the University of Texas Medical Branch, in a study published online Tuesday in Nature Medicine, found that the booster shots performed well against the BA.5 subvariant they were designed to target.

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New study spotlights disparities in COVID-19 clinical trials

A study yesterday in JAMA Internal Medicine shows women and racial minorities were underrepresented in both COVID-19 clinical treatment trials and in disease prevention trials.

The research was conducted by a team from the Fred Hutchinson Cancer Center, as well researchers from Beijing and London.

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COVID vaccine hesitancy linked to 'nocebo' side effects--study

Vaccine hesitancy about COVID-19 vaccines is a positive predictor of negative side effects with vaccination—an example of the "nocebo" effect—according to a study today in Scientific Reports.

Nocebo, a play on placebo, is a phenomenon in which people experience negative effects on health when they have negative views or expectations surrounding medical interventions.

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