The delta coronavirus variant surging across the United States appears to cause more severe illness and spread as easily as chickenpox, according to an internal document from the US Centers for ...

For many people, the COVID-19 pandemic feels like a distant memory. In reality, the SARS‑CoV‑2 coronavirus is still spreading widely across the globe and continues to evolve into new variants.

Experts warn a new pandemic in 2026 could lead to a summer surge in COVID cases as new COVID variant BA 3.2 spreads across the US and 20 other countries. The variant, also called Cicada, had remained ...