COVID-19 Cases Climb Across All U.S. States as Summer Ends
U. S. health officials said the CDC's latest data show COVID-19 infections rising in all states, with the sharpest gains in the South and West, and urged vaccination, mask use and improved ventilation. Earlier reports had noted a modest summer increase in cases nationwide, with hospitalizations and deaths remaining low.
The national test-positivity rate had briefly topped 3% – the highest level since March – and a CDC epidemic-trends model indicated transmission climbing in 50 states and Washington, D. C. Experts linked the surge to seasonal behavioral changes and waning immunity, describing it as part of the virus's biannual wave pattern.