A Review on Current Status of SARS-CoV-2 (2019-nCoV): Its Diagnosis and Challenges

Abstract

The worldwide pandemic of Covid-19 is a major source of concern because it has an impact on everyone s life, whether directly or indirectly. As a result, inter-personal and social interactions have changed significantly. Up to 19th April 2021, there have been\xa0140,886,773 confirmed cases of COVID-19, including 3,012,251 deaths as\xa0reported to World Health Organisation (W.H.O.), out of total confirmed cases only America shares 59,757,984 cases and India 15,061,919 cases. A total of 792,796,083 vaccine doses\xa0have been administered globally till 18th April 2021. Repeated emergence and global transmission, large numbers of infected people, infection and mortality among Health Care Workers (HCWs), and increased risk in vulnerable/susceptible groups have all been major sources of concern. We have summarized all the updated information on SARS-CoV-2 (2019-nCoV) including epidemiology, clinical manifestation, laboratory diagnosis, vaccine development, preventive measures and present as well as future challenges.