Severe Acute Respiratory Syndrome (SARS) can be transmitted through short-range respiratory droplets or through direct contact with patients' secretions. Wearing a mask can prevent SARS. It also helps prevent the spread of the disease if you have a respiratory infection. Properly worn masks can effectively prevent the spread of droplet infection.
Wearing a mask is just one way to prevent respiratory infections. The most important thing is to maintain good personal hygiene. Wash your hands often with hand sanitizer. After sneezing, coughing, and cleaning your nose, be sure to wash your hands; go to the toilet before touching your eyes, nose, and mouth or preparing food. You can also boost your body's immunity by developing a healthy lifestyle-eat enough, get plenty of rest, exercise, and don't smoke.