JN.1 variant drives COVID-19 surge across United States

September 30, 2025 由 AI 报道

The JN.1 subvariant of Omicron is fueling a notable increase in COVID-19 cases and hospitalizations in parts of the United States this summer. Health officials report rising levels in wastewater surveillance and a 20% uptick in hospitalizations in several regions. Experts urge continued vigilance amid the variant's higher transmissibility.