When the air is smoky from burning wildfires, health experts say to stay indoors.

How long can I expect a COVID-19 illness to last? Most coronavirus patients have mild to moderate illness and recover quickly. Dr. Khalilah Gates, a Chicago lung specialist, said many of her hospitalized COVID-19 patients still have coughing episodes, breathing difficulties and fatigue three to four months after infection. She said it’s hard to predict exactly when COVID-19 patients will return to feeling well. COVID-19 can affect nearly every organ, and long-term complications can include heart inflammation, decreased kidney function, fuzzy thinking, anxiety and depression.

You’re going to beat it,” Donald Trump said in a White House video released after he left the hospital Monday. It is true that the vast majority of people who get COVID-19 develop only mild symptoms. It is true, as Trump said in the video, that medicines have been found that can treat the virus, reducing chances for severe illness and death. Another reason for concern is uncertainty over which patients will develop lasting complications affecting the lungs, heart, kidneys and other organs. While these are more common in patients with severe infections, persistent symptoms lasting several months have occurred even in those with mild disease.