Conflicts of Interest/ Competing Interest
There are no conflicts / competing of interest
Contributor ship statement - The whole work is solely done by the author Dr Piyush Kumar as mentioned above. The document is Microsoft word with English (India) language.
Total no of words - 1960 words
Funding- Self sponsored. No aid taken from individual or agency etc.
Acknowledgements- I am thankful to advocate Anupama my wife for cooperation.
Ethics- This study has not involved any humans or animals.
Data availability – The data source is World Health Organisation.
REFERENCES
  1. https://apps.who.int/iris/bitstream/handle/10665/332197/WHO-2019-nCoV-FAQ-Virus_origin-2020.1-eng.pdf
  2. https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---31-march-2021
  3. Harrisons Principles of Internal Medicine-18th edition volume 1
THANK YOU