Using basic hygiene measures is the best way to avoid contamination.

You should use them on a daily basis, regardless of your location and situation (hospital, home, school, travel, etc.):

• Wash your hands regularly with soap and water, for example, after using the toilet, before cooking or eating, on returning home, after recreational activities or taking a break, on leaving the hospital or the doctor’s office, etc.
• Use a water-based alcohol solution when there is no water available.
• If you have a cold, sneezing or coughing, use a tissue and dispose of it in the trash after use, and then wash or disinfect your hands.