What We Know About the COVID-19 Delta Variant The Delta variant of the novel coronavirus was first discovered in India in December of last year. It rapidly began… July 24, 2021 · by Jeffrey Olmsted · 0
The COVID-19 Delta Variant – Vaccine Effectiveness and Risks The COVID-19 Delta variant is also known as B.1.167.2, a sub-lineage of B.1.167. The U.S. Centers for Disease Control and… June 20, 2021 · by Anna Daniels · 0