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What is WHO declared COVID- 19 as Global pandemic on: and explain in detail?
COVID- 19: Origin- Wuhan, China 1st Dec, 2019- 1st case was repoed 1st Jan, 2020- Wuhan seafood market was closed 7th Jan, 2020- Chinese health authority identifies Novel Corona virus 30th Jan, 2020- 1st case repoed in India (Kerala); WHO declared it as Health emergency of international concern 11th Feb, 2020- Name COVID-19 by WHO 11th March, 2020- WHO declared COVID- 19 as global pandemic