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Epidemiological characteristics, reinfection possibilities and vaccine development of SARS CoV2: A global review. | LitMetric
According to the World Health Organization (WHO), there are 37,704,153 cases and 10,79,029 deaths due to COVID-19 till the 13th October 2020 in the world. Day by day, rise in the number of COVID-19 deaths has created great pressure on health facilities, governmental bodies, and health workers. There is a need for knowledge regarding lifecycle, transmission, and different strains of SARSCoV2, so that countries can stop the disease as early as possible. The present study was conducted to review various epidemiological aspects along with measures used in the containment and prevention of this new pandemic. The scientific literature database was searched using the terms: coronavirus, 2019-nCoV, SARSCoV2, and COVID-19. Articles with appropriate topics fulfilling the objective of the present work were included. The epidemiological characteristics regarding life-cycle, intermediate hosts, viability on various surfaces, strains, case fatality rate, and their implication to reduce the transmission of SARSCoV2 have been identified. According to Centers for Disease Control and Prevention, Atlanta (updated till October 05, 2020) people with recurrent or persistent positive COVID-19 tests in South Korea and USA did not show to have live virus in their bodies. As per WHO web-page information till 15 October 2020, there were 42 candidate vaccines in clinical evaluation and 156 vaccines are in preclinical evaluation phase. As the virus can easily be transmitted to the people either via droplets, fomites, and may be via the fecal-oral route, knowledge regarding the above-mentioned areas is needed for time to be prepared for the next waves of the COVID-19 pandemic.
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