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Nov 21, 2023 · The virus that causes COVID-19 was a novel coronavirus, meaning it had never infected humans. The virus was discovered in Wuhan, China, in 2019 ...
1. INTRODUCTION. The most widespread coronavirus to date was discovered in Wuhan, China in November 2019, and the disease it causes is named coronavirus disease ...
In December 2019, a novel human coronavirus started a pandemic of severe pneumonia COVID-19 in Wuhan, Hubei, China (1). The International Committee on Taxonomy ...
The first known case was identified in Wuhan, China, in December 2019. ... Most scientists believe the SARS-CoV-2 virus entered into human populations through ...
Jun 7, 2023 · The origins story dates back to December 31, 2019, when the World Health Organization (WHO) learned of a cluster of cases of pneumonia of ...