With so many fabrics and styles out there, the question, "How do I know if my mask is effective?" is on many people's minds. Masks—and the many myths people believe about them—have come to dominate ...

SAN FRANCISCO (KGO) -- The omicron surge has caused the CDC to finally update its mask guidance late last week, indicating a clear preference for the level of protection offered by N95 and KN95 masks.

The pandemic may be over, but the infectious disease that caused it is still alive and well. Ohio is one of 31 states with very high COVID-19 activity, according to wastewater data collected by the ...