How the omicron subvariant BA.5 became a master of disguise – and what it means for the current COVID-19 surge
- Written by Suresh V. Kuchipudi, Professor and Chair of Emerging Infectious Diseases, Penn State
The new BA.5 subvariant has caused a sharp rise in cases and hospitalizations throughout much of the United States.Irfan Khan/Los Angeles Times via Getty ImagesThe omicron subvariant known as BA.5 was first detected in South Africa in February 2022 and spread rapidly throughout the world. As of the second week of July 2022, BA.5 constituted nearly...

