When it comes to infectious diseases in the news, you often hear terms like outbreak, epidemic, pandemic and endemic. The differences in these terms comes down to the scope of disease, the reach of ...

SAN FRANCISCO -- As California becomes the first U.S. state to adopt an "endemic" approach to COVID-19, we take a closer look at what becoming "endemic" means and if virus levels have truly ...

SAN FRANCISCO -- It is "reasonably likely" to expect the pandemic to draw to a close as soon as a month from today, though COVID-19 is likely to stay, according to UCSF's Chair of the Department of ...

The Andes hantavirus outbreak shows how easily disease labels are misunderstood — and why they describe patterns of spread, ...