Author Guidelines
Download Copyright

Historical journey of coronavirus to COVID-19 pandemic: An overview

Volume No : (2020) Volume: 08 Issue : 40 Year : 2020 Page No: 128-134

Authors : Mandeep Rana, Simran Singla, Priya Jaswal, Gurfateh Singh

Abstract :

Human coronaviruses are non-segmented positive-sense RNA viruses enveloped by nucleoproteins with club-shaped glycoprotein’s which are responsible for various diseases in our ecosystem. In the 21st century, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stands with high pathogenicity as compared to SARS-CoV in 2002 and Middle East respiratory syndrome coronavirus in 2012. Coronavirus disease 19 (COVID-19), a flooded event, with its core in Wuhan city has come out as an omnipresent public health emergency of global interest in December 2019 by the World Health Organization. Humans got this virus from the bats through any intermediate source, but still it is unknown. At present, 200+ countries or territories have been affected by SARS-CoV-2, with a universal prevalence of 73,327,817 confirmed cases and 1,630,864 deaths as of December 15, 2020. At present, the COVID-19 cases stand in front of our corona warriors as an asymptomatic carrier platform with respiratory problems which affects all age groups. Droplets or direct contact may be the easiest way of human-to-human transmission of infection with a mean incubation period of 7–14 days. This review enlightened on the epidemiology, history, pathogenesis, and comparative analysis

of COVID-19.

Full Text PDF