Are Bluish Lips a Symptom of COVID-19? Here's What Doctors Say

In severe cases, COVID-19 can cause bluish lips due to low oxygen. Doctors explain why this is one coronavirus symptom you don’t want to ignore.

When to see a doctor for COVID-19, UCI Health

Coronavirus disease 2019 (COVID-19): MedlinePlus Medical Encyclopedia

Long-Haul COVID-19 Symptoms May Appear in This Order

Long COVID: Long-Term Effects of COVID-19

How to Recover From Covid-19 at Home - The New York Times

Coronavirus Symptoms: Common Symptoms, vs. Cold & More

RSV Is Spreading Among Children—Here's Why & When to See a Doctor

COVID-19 vs. Flu: How to Tell the Difference and Protect Yourself

Contagion' vs. coronavirus: Film and fact

New coronavirus stable for hours on surfaces

Coronavirus Symptoms Full List: What Are They? Is There a Cure

MIS-C is a rare but dangerous illness striking children weeks