Consequently, Coronavirus variants popped up in durations as short as a few months, after the aggravation of the pandemic in late 2020. The World Health Organization and Center for Disease Control, United States, have classified Coronavirus variants into three categories. Most contagious Delta variantThe delta variant first identified in India, October 2020, resulted in an aggressive epidemic there and rapidly diffused. Vaccinations and Delta VariantExcept for a partial immunity evasion of the Delta variant, vaccines are effective against both variants. Under such circumstances, the anomalies reported as lesser effectiveness of vaccines in the case of the Delta variant, could also entail errors in data interpretation, arising from the fact that the Delta variant spreads fast.

Source: The Nation September 27, 2021 00:56 UTC