| http://www.w3.org/ns/prov#value | - In developed countries, the most common symptoms are fever, cough, sore throat, runny nose, muscle pains, and weakness/fatigue.[16] Because people with other infectious respiratory diseases can present with the same symptoms during the same season, conducting surveillance for a longer period will help to better understand the seasonality of influenza.West African Sub-Saharan countries experience H
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