Cold, Flu, COVID, or RSV? How to Tell What You Actually Have

Everyone in the house is sick and nobody knows what they actually have. Same runny nose, same cough, different guesses about what to do next.

A cold comes on gradually over a day or two. Symptoms stay mild to moderate: runny nose, sore throat, mild cough, maybe a low fever in kids. Most people still function through it.

The flu hits fast, often within hours. High fever, body aches, and exhaustion that makes getting off the couch feel hard. Kids and older adults are more likely to need medical attention with flu than with a cold.

Supplies needed for the cold and flu season

COVID can look like either one. Some people get classic cold symptoms. Others get flu-like fatigue and fever, sometimes with a lingering loss of taste or smell.

RSV usually shows up as a bad cold in adults, congestion and cough that lingers. In infants and older adults, it can move into the lungs and cause real breathing trouble. That's why RSV gets taken more seriously at the extremes of age.

Testing is the only way to know for certain:

• Flu and COVID both have antiviral treatments that work best started early

• RSV has no specific antiviral for most people, but knowing it's RSV changes what to watch for in a baby or grandparent

• A positive test also tells you how long to isolate and who's at higher risk if exposed

Testing early is worth the trip if symptoms are more than mild. It's also worth it if anyone in the house is very young, pregnant, or over 65.

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