Health ❯ Epidemiology ❯ Disease Surveillance

Variant Tracking

Genomic Sequencing JN.1 Variant NB.1.8.1 XEC Variant Transmissibility International Cases Nimbus Variant Tracking Omicron Sub-variants Genetic Mutations SARS-CoV-2 Nimbus Variant Omicron Sublineages Testing and Positivity Rates NB. 1.8.1 WHO Recommendations Public Response Omicron Variant XFG Variant Surveillance CDC Reports COVID-19 Variants BA.3.2 Variant UK Health Safety Agency Impact Assessment Influenza Variants International Travel and Variants Mpox Variants INSACOG Data Viral Infections

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

Health authorities recommend updated vaccinations to curb spread since WHO warns that forthcoming guidance may limit vaccine access