| Symptom |
Cold |
H1N1 Flu |
| Fever |
Fever is rare with a cold. |
Fever is usually present with the flu in up to 80% of all flu cases. A temperature of 100°F or higher for 3 to 4 days is associated with the flu. |
| Coughing |
A hacking, productive (mucus- producing) cough is often present with a cold. |
A non-productive (non-mucus producing) cough is usually present with the flu (sometimes referred to as dry cough). |
| Aches |
Slight body aches and pains can be part of a cold. |
Severe aches and pains are common with the flu. |
| Stuffy Nose |
Stuffy nose is commonly present with a cold and typically resolves spontaneously within a week. |
Stuffy nose is not commonly present with the flu. |
| Chills |
Chills are uncommon with a cold. |
60% of people who have the flu experience chills. |
| Tiredness |
Tiredness is fairly mild with a cold. |
Tiredness is moderate to severe with the flu. |
| Sneezing |
Sneezing is commonly present with a cold. |
Sneezing is not common with the flu. |
| Sudden Symptoms |
Cold symptoms tend to develop over a few days. |
The flu has a rapid onset within 3-6 hours. The flu hits hard and includes sudden symptoms like high fever, aches and pains. |
| Headache |
A headache is fairly uncommon with a cold. |
A headache is very common with the flu, present in 80% of flu cases. |
| Sore Throat |
Sore throat is commonly present with a cold. |
Sore throat is not commonly present with the flu. |
| Chest Discomfort |
Chest discomfort is mild to moderate with a cold. |
Chest discomfort is often severe with the flu. |
