page = covid-19 : npr
url = https://www.npr.org/tags/804916759/covid-19
A medical assistant administers a coronavirus test last week in Los Angeles. COVID-19 cases are on the rise as the highly transmissible delta variant has become the dominant coronavirus strain in the United States. Mario Tama/Getty Images hide caption
July 22, 2021 • Cases of the variant have popped up in several states. But neither the WHO nor the CDC considers it a variant of concern, and the fast-spreading delta variant continues to dominate U.S. cases.

CIA Director William Burns says he has appointed a senior officer who led the hunt for Osama bin Laden to head the investigation into ailments that have afflicted U.S. officials around the world. Ian Morton/NPR hide caption
July 22, 2021 • In an NPR interview, William Burns says he has appointed a senior officer who led the hunt for Osama bin Laden to head the investigation into ailments that has afflicted U.S. officials worldwide.