Wash your hands often using proper hand hygiene and help/remind your child to as well. Washing with soap and water for at least 15 seconds will help keep viruses from spreading. If soap and water are not available, use a hand sanitizer (gel or wipes) with at least 70% alcohol.
Disinfect high touch surfaces in your home often, such as doorknobs, tv remotes, water taps, etc.
Limit your number of social contacts, especially when indoors if the space will be crowded or people will be in close contact (less than 2 metres apart) and without a mask.
When you can, spend time outside where there is a lower risk of viruses spreading compared to indoor environments.