David Heymann

2 results

Health officials collect a swab sample from a man to test for   Covid-19   at a testing centre  in Hyderabad, India. Photograph: Noah Seelam/AFP via Getty Images

A major research effort is under way to understand whether coronavirus can spread through tiny airborne particles that are released by infected people(...)

 The WHO said the Zika virus, carried by mosquitoes, remains a highly significant problem, but it is not any more a public heath emergency of international concern. File photograph: Yuri Cortez/AFP/Getty Images

The World Health Organization (WHO) declared on Friday that the Zika virus and related neurological complications no longer constitute an internationa(...)