Top WHO expert clarifies remarks on spread of novel coronavirus
Maria van Kerkhove, head of the Outbreak Investigation Task Force for the World Health Organization, speaks during a news conference in Geneva, Switzerland, on Jan. 29, 2020.Studies show people with the coronavirus are most infectious just at the point when they first begin to feel unwell, World Health Organization experts said on Tuesday.
Earlier, some disease experts questioned her statement on Monday that transmission of COVID-19 by people with no symptoms is “very rare”, saying this guidance could pose problems for governments as they seek to lift lockdowns. Dr. Mike Ryan, WHO’s top emergencies expert, said that the novel coronavirus lodges in the upper respiratory tract, making it easier to transmit by droplets than related viruses such as SARS or MERS, which are in the lower tract.
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