COVID-19 research is still in the beginning stages and there is much that remains uncertain. This table compares the symptoms of COVID-19 to that of the flu and the common cold. Similar to the flu, the symptoms of COVID-19 may range from mild to severe. Mild cases are defined by the World Health Organization (WHO) as those which will not need hospitalization to resolve. The most severe cases may require supplemental oxygen or breathing machines to treat respiratory issues. Familiarize yourself with the differences in symptoms between COVID-19, the flu, and the common cold.
Download a printable copy of the Guide to COVID-19 Symptoms
This resource is a vital concept for all nurses and may accompany any of our continuing education courses. View the general class catalog here.
Guide to COVID-19 Symptoms
|
Incubation Period |
1—3 days |
2—14 days |
1—4 days |
|
Symtom Onset |
Gradual |
Gradual |
Abrupt |
|
Body Aches & Pains |
Slight |
Sometimes |
Common
May be severe |
|
Chills |
Uncommon |
Sometimes |
Fairly Common |
|
Cough |
Mild to moderate |
Common |
Common
May become severe |
|
Diarrhea |
Rare |
Sometimes |
Sometimes |
|
Extreme Exhaustion |
Never |
Common |
Common
Early onset |
|
Fatigue & Weakness |
Sometimes |
Common |
Common
Usually intense
May last 2-3 weeks |
|
Fever |
Rare |
Common
High (100 - 102 °F)
Fever may last 3-4 days |
Common |
|
Headache |
Rare |
Sometimes
May be intense |
Common |
|
Loss of Appetite |
Sometimes |
Sometimes |
Common |
|
Loss of Taste or Smell |
Sometimes |
Sometimes |
Sometimes |
|
Nasal Congestion |
Common |
Somtimes |
Sometimes |
|
Respiratory Issues |
Sometimes |
Common |
Sometimes |
|
Runny Nose |
Common |
Sometimes |
Sometimes |
|
Shortness of Breath |
Rare |
Common in serious infections |
Sometimes |
|
Sneezing |
Common |
Sometimes |
Sometimes |
|
Sore Throat |
Common |
Sometimes |
Sometimes |