Gamma, delta, lambda – here’s your guide to the Greek alphabet of the COVID-19 variants

The Illinois Department of Public Health lists COVID-19 variants of concern. As of their most recent data, updated July 26, the original alpha still accounts for the majority of cases, with 6,973 of the total 10,886 cases. Next up is the gamma variant, with 2,641 cases, followed by 636 cases of the delta variant.