TABLE 2.
“BIODROME” key differentiating symptoms: avian influenza compared with seasonal flu and influenza-like illnesses/upper respiratory infections
| Is it? Number of “+” indicates strength of association | Avian Flu (H5N1) | Seasonal Influenza (Flu) | Upper Respiratory Infection | Common Cold |
|---|---|---|---|---|
| Elevated temp | +++/++++ | ++ | ++ | +/− |
| Fever/chills | ++++ | ++++ | ++++ | |
| Cough | +++ | +++ | +++ | +++ |
| Shortness of breath | ++++ | +/− | +/− | |
| Chest discomfort | +++ | ++ | ++ | |
| Sore throat | +/− | +++ | +++ | ++ |
| Vomiting/nausea | ++ | + | + | − |
| Diarrhea | ++ | + (young children) | +/− | − |
| CNS/encephalopathy/seizures | ++ | − | − | − |
| Malaise/fatigue | +++ | +++ | + | +/− |
| Runny nose/watery eyes | +/− | + | ++ | +++ |
| Headache/muscle ache | +++ | +++ | ++ | +/− |
| Young healthy at risk for serious illness | +++ | +/− | +/− | − |