COVID-19: Who’s at higher risk of serious symptoms?

Other health conditions, such as heart or lung disease, can increase your risk of developing dangerous symptoms if you become infected with coronavirus disease 2019 (COVID-19).

By Mayo Clinic Staff

Coronavirus disease 2019 (COVID-19) symptoms can vary widely. Some people have no symptoms at all, while others become so sick that they need to stay in the hospital and may eventually need a ventilator to breathe.

The risk of developing dangerous symptoms of COVID-19 may be increased in people who are older and also in people of any age who have other serious health problems — such as heart or lung conditions, weakened immune systems, obesity, or diabetes. This is similar to what is seen with other respiratory illnesses, such as influenza.

While each of these factors can increase the risk of severe COVID-19 symptoms, people who have several of these other