A majority of German federal states have enforced a rule on Monday making it mandatory for people to wear face masks outside their homes as the country battles to prevent the spread of coronavirus. In most of the states, Germans will be required to wear a covering on public transport and while shopping. However, in some states a mask is only mandatory on public transport, and is recommended for shopping. Hefty fines ranging from 25 euros to 10,000 euros can be imposed on those who fail to wear a mask, with rates differing widely across the country, and some states, such as Berlin and Brandenburg, saying they would not slap fines at all, but would rely instead on people showing each other mutual respect by wearing them. The strictest state is Bavaria, which has also been Germany's hardest hit in terms of coronavirus cases and deaths. People in stores and on public transport who do not don a face mask can be fined up to 150 euros. Store owners who don't force their employees to wear masks can be fined up to 1,500 euros. Across the world countries are coming up with their own guidance on mask-wearing. However, the World Health Organization (WHO) advice suggests people should wear protective masks only if they are sick and showing symptoms, or if they are caring for people suspected to have Covid-19. It says masks are not recommended for the general public because they can be contaminated by coughs and sneezes, and might offer a false sense of security. — Agencies