1. Hunt for Covid-19 Origin, Patient Zero Points to Second Wuhan Market – the man with the first confirmed infection of the new coronavirus told the WHO team that his parents had shopped there". Wall St J. (Page J, Hinshaw D, McKay B. 26 February 2021).
2. First confirmed case of COVID-19 infection in India: a case report;Andrews;Indian J Med Res,2020
3. https://www.who.int/director-general/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---23-october-2020. Accessed: 2021-08-20.
4. https://www.bbc.com/news/world-asia-india-52024239. Accessed: 2021-08-20.
5. The Lancet. India under COVID-19 lockdown;Lancet,2020