BBCNEWS BBC News November 21, 2021 12:12:00
Wave and spread of infection. the reason why the virus spreads is a combination of changes in social distancing, whether that is lockdown measures or mask wearing, plus the immunity of the population. we have actually had some spread going on since the summer, and so i think it is unlikely that we are going to see a very sharp rise in the next few months. joining me now is dr margaret harris from the world health organization. currently working on a project in cavill in afghanistan. we will talk...
Social Distancing Lockdown Measures Virus Spreads Margaret Harris World Health Organization Project In Cavill
Source: archive.org