Missouri health officials say South African variant of COVID-19 found in Jackson County April 7, 2021April 7, 2021
First confirmed case of Indian coronavirus variant in U.S. found in California April 4, 2021April 3, 2021
Mass. becomes state with most cases of new COVID-19 variant after Cape Cod outbreaks April 4, 2021April 3, 2021
Highly Contagious Coronavirus Variant Spread Across the Globe – Undetected for Months – Before Its Discovery April 1, 2021