Alpha, beta, gamma, delta: How variants of the COVID-19 virus continue to evolve. By Leah Boyd. Updated July 21, 2021 7:22 PM. The delta variant of SARS-CoV-2, the virus that causes COVID-19, has ...

B.1.617.2 (Delta) is a variant of concern (VOC), hence the recent “Interim Public Health Recommendations for Fully Vaccinated People” which was updated July 28, 2021 by the CDC.

Gamma variant. Gamma variant was first documented in Brazil in November 2020. Is date of designation was Jan. 11. Delta variant. Delta variant was first documented in India in October 2020.

According to the WHO, four variants currently meet the standard: alpha, beta, gamma, and delta. Of course, most of us in the United States are very familiar with delta, which has been the dominant ...

The delta variant of SARS-CoV-2, the virus that causes COVID-19, has been making headlines as it has quickly become the most prevalent strain in America. But other variants of the ...