Coronavirus disease-2019 pandemic: Tracing the source of viral infection and minimizing the possibility of reintroduction of virus in human population

The Corona Virus Disease-2019 (COVID-19) outbreak has overwhelmed the public health authorities and the health care delivery system of multiple nations. The ongoing pandemic is caused by one of the viruses - SARS-CoV-2, belonging to the coronaviruses family. The genetic sequence of the isolated virus was similar among all the initial patients from Wuhan, which clearly indicate that the outbreak began from a single point introduction among the humans. At present, it is critical to understand about the origin of the virus, as it is a novel viral infection. These findings will aid us in getting significant insights about the start of the outbreak or the origin of the virus and thus we will be able to mount a better public health emergency response. In conclusion, in order to contain the COVID-19 pandemic, it is vital to identify the source of the virus and then take appropriate prevention and control measures, otherwise there is always a potential risk of reintroduction of the virus in the future once again and then once again we might be facing the challenge of containing the outbreak.