SAN FRANCISCO (KRON) — Did you catch COVID-19 last year? The virus may still be in your body, two new studies found. The studies conducted by University of California San Francisco infectious disease ...

The COVID-19 virus can persist in the blood and tissue of patients for more than a year after the acute phase of the illness has ended, according to new research from UC San Francisco that offers ...

Pieces of the COVID virus can lurk in our blood and tissue for almost two years after the initial illness has vanished, a discovery that might offer clues to the mystery of lingering post-infection ...

The most common respiratory viruses that cause flu, colds, and RSV tend to cluster in the fall and winter months. Though that means months of elevated risk for sickness, "cold and flu season" is a ...

Early in the beginning of the COVID-19 pandemic, scientists predicted the coronavirus would mutate slowly. They were wrong. Hundreds of thousands of viral mutations and multiple seasonal waves later, ...

Reports of respiratory illness have now reached "high" or "very high" levels across at least 16 state or big city health departments, the Centers for Disease Control and Prevention said, as trends of ...