To slow down the spread of the infection among the general population, and to protect vulnerable people, it is important to adopt a certain number of protective measures - in addition to wearing a mask.
The most important thing is to regularly wash your hands thoroughly.
Cough and sneeze into your elbow crease, or into a paper handkerchief that you then throw away in a lidded bin.
Avoid shaking hands or kissing.
Limit close contact with people who are ill by staying at least 2 metres away from them.
Avoid touching your face with your hands as much as possible.
And try to limit travel as much as possible.