Variants of SARS-Cov-2: a cause of concern
SARS-Cov-2 has emerged as one of the dreaded viruses that the world has so far faced. Ever since its outbreak, the virus has been baffling scientists with its unique inimitable pattern of mutation which leads to the beginning of several variants. Consequently, several parts of the world have gradually come under the grip of variants such as alpha, beta, gamma, delta etc. All these variants possess different transmission rate, mortality rate. Amid these variants, delta variant has emerged out to be highly transmissible leading to imposition of constraints in various sectors. This brief communication appraises reader about the variants of this virus, with special emphasis on delta variant. The transmissivity as well as infectivity rate of the variants are delineated in this brief article. In a comparative footing, the variants are highlighted along with plausible recommendations.
SARS-Cov-2, Covid-19 pandemic, China, virus, transmission rate, mortality rate, infectivity