If I was going to the African continent where would be the safest and most sanitary place?

The woman dental hygienist said to me, lying down in the chair, "Right, please open your mouth."

She studies hygiene as part of her domestic science course.

He is a sanitary inspector.

Where is the sanitary section?

The lake was ringed by a fence, apparently for health and safety reasons.

China's health authorities are taking steps to stop the spread of the coronavirus.