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Effectiveness

NB.1.8.1 Variant Response Nimbus Variant Variants Public Health Recommendations Stratus Variant Public Health Risk Against Variants Omicron Variants XFG Variant XFG Against Nimbus Variant JN.1 Vaccine Protection Against Variants Variant Protection

US COVID Cases Climb as Stratus Variant Gains Ground

National wastewater surveillance has been upgraded to moderate levels following a spike in test positivity across a dozen states

Nimbus Variant Becomes Second-Most Common COVID-19 Strain in U.S.

New COVID-19 Variant NB.1.8.1 Reaches Multiple U.S. States as Vaccine Guidelines Change

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