If you are sick, you can prevent the spread of COVID-19 in your home and community if you:

• Isolate yourself at home if you have symptoms.
• Restrict activities outside your home, except for getting medical care. 
• Do not go to work or public areas until extremely necessary. Avoid using public transportation, ride-sharing, or taxis until necessary.
• Stay in a specific room and away from other people in your home. Also, use a separate bathroom if available.
• Avoid contact with your pet, including petting, snuggling, being kissed or licked, and sharing food.
• If you have a medical appointment, call the healthcare provider and tell them that you have or may have COVID-19. This will help the healthcare provider's office take steps to keep other people from getting infected or exposed.
• Wear a mask and cover your coughs and sneezes.

References:

1.https://www.cdc.gov/coronavirus/2019-ncov/hcp/guidance-prevent-spread.html

2.https://www.who.int/news-room/q-a-detail/q-a-coronaviruses