The United States is in the grip of an especially virulent flu season. At least 41 US states have reported outbreaks, with more than 2,500 people being hospitalizsd and 18 children dying from it before the end of 2012 (Catholic Online). Health officials say the numbers haven't even peaked yet.
In 2012, flu-related pneumonia and deaths peaked in early January. That season was considered a "moderately severe" season for flu, and ended in mid-February. Officials say it's still too early to tell how bad this year's flu season will get.
1. Cough - 19 percent
2. Sore throat - 16 percent
3. Fatigue - 15 percent
4. Headache - 14 percent
5. Body Ache - 10 percent
6. Fever - 7 percent.
More information: The Travel Clinic Ltd, Cambridge and Ipswich
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