REFERENCES
https://www.gavi.org/vaccineswork/why-indias-covid-19-pandemic-skyrocketing
https://apps.who.int/iris/bitstream/handle/10665/332197/WHO-2019-nCoV-FAQ-Virus_origin-2020.1-eng.pdf
https://www.gavi.org/vaccineswork/why-indias-covid-19-pandemic-skyrocketing
Harrisons Principles of Internal Medicine-18th edition volume 1
https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---31-march-2021
https://www.who.int/news-room/commentaries/detail/transmission-of-sars-cov-2-implications-for-infection-prevention-precautions
https://www.who.int/teams/environment-climate-change-and-health/emergencies/disease-outbreaks/
https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public