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A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.
In August 2024, the World Health Organization declared a second "Public Health Emergency of International Concern" for mpox.
In August 2024, the World Health Organization declared a second "Public Health Emergency of International Concern" for mpox.