U.S. respiratory virus levels continue their decline but shift seen in JN.1 mutations--CDC

US respiratory virus levels continue to decline as officials track shift in SARS-CoV-2 proportions Amid further declines in COVID activity, the CDC reported a steady rise in JN.1 spinoffs that have 2 added spike mutations, part of a group nicknamed FLiRT. CIDRAP

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In its weekly snapshot for flu, COVID-19, and respiratory syncytial virus (RSV), the CDC said no states are reporting high activity. Only one—North Dakota—is reporting moderate activity.

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