Healthcare ❯Public Health ❯Disease Surveillance

COVID-19 Variants

CDC Guidelines Monitoring Nimbus Variant Symptoms XFG and XFG.3 Stratus

Nimbus Covid Variant Causes ‘Razor Blade’ Throat as It Becomes Second-Most Common U.S. Strain

Health officials warn the Omicron subvariant NB.1.8.1 may become dominant by winter; vaccines continue to protect against severe illness.