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Variant XFG, colloquially known as "Stratus," was first detected in Southeast Asia in January but accounted for less than ...
COVID-19 cases are rising across the United States, driven by new variants Stratus (XFG) and Nimbus (NB.1.8.1). While Stratus is anecdotally linked to hoarseness and Nimbus to severe sore throat, they ...
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