There’s been a lot of debate on whether healthy people should wear masks, and many places around the world have now either made it compulsory or issued advisories. Germany for instance has become the latest country to urge its people to wear masks in public.
What is the advice from the World Health Organization? After a recent meeting to discuss the issue, it still maintains that medical masks should be reserved only for healthcare workers and not for the general public.
The BBC’s health correspondent Laura Foster explains the scientific argument behind this stance.