Symptoms and Prevention 

Learning objective

Here you will learn the symptoms of COVID-19, the steps you can take to prevent the spread of the virus, and what to do if you are sick.

You need to answer 1 out of 1 questions correctly to pass this section.

Doctor and Patient

Reported illnesses have ranged from mild symptoms to severe illness and death for confirmed coronavirus disease 2019 (COVID-19) cases.

The following symptoms may appear 2-14 days after exposure (based on what has been seen previously as the incubation period of MERS-CoV viruses):

  • Fever

  • Cough

  • Shortness of breath

Call your doctor if you…

  • Develop symptoms, and have been in close contact with a person known to have COVID-19, or

  • Have recently travelled from an area with widespread or ongoing community spread of COVID-19 (China, Iran, Italy, Japan, South Korea).


There is currently no vaccine to prevent coronavirus. The best way to prevent illness is to avoid being exposed to this virus. Here are the everyday preventive actions to help prevent the spread of germs.


Avoid close contact with people who are sick.


Stay home when you are sick.

Clean and disinfect frequently touched objects and surfaces using a regular household cleaning spray or wipe.

Avoid touching your eyes, nose, and mouth.


Cover your cough or sneeze with a tissue, then throw the tissue in the trash.


Wash your hands often with soap and water for at least 20 seconds, especially after going to the bathroom; before eating; and after blowing your nose, coughing, or sneezing.

What to do if you are sick

If you are sick or suspect you are infected with the virus that causes COVID-19, follow the steps below to help prevent the disease from spreading to people in your home and community.