The World Health Organization declared the outbreak a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020.
An epidemic is when an infectious disease spreads quickly to more people than experts would expect. It usually affects.
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Answer:
The World Health Organization declared the outbreak a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020.
An epidemic is when an infectious disease spreads quickly to more people than experts would expect. It usually affects.
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