A pneumonia of unknown cause was first reported to the World Health Organization (WHO) on 31 December 2019 in China’s Hubei Province.
Click here for original story, The geographies of COVID-19
Source: Phys.org
A pneumonia of unknown cause was first reported to the World Health Organization (WHO) on 31 December 2019 in China’s Hubei Province.
Click here for original story, The geographies of COVID-19
Source: Phys.org