WHO official walks back comments on asymptomatic transmission being 'very rare' |
![]() Dr. Maria Van Kerkhove, WHO's technical lead for COVID-19 response, clarified Tuesday that asymptomatic transmission is still 'a major unknown.' |
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WHO official walks back comments on asymptomatic transmission being 'very rare' |
![]() Dr. Maria Van Kerkhove, WHO's technical lead for COVID-19 response, clarified Tuesday that asymptomatic transmission is still 'a major unknown.' |
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