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West Nile Virus Found in Mosquitoes in Two Maryland Counties

The detections signal intensified surveillance that triggers targeted mosquito control measures.

‘Cicada’ COVID Variant Spreads Globally as Officials Track Its Rise

CDC Probes Norovirus Outbreak on Star Princess That Sickened 153 on Caribbean Voyage

Summer COVID-19 Wave Underway in 25 States Driven by Nimbus Variant

Nimbus COVID Variant Drives 55% of Cases in California

Nimbus COVID Variant Now Causes Over One-Third of U.S. COVID Cases

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

COVID Variant NB.1.8.1 Rapidly Overtakes Other Strains Worldwide

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