An influenza virus infection typically presents as general malaise with fever, headache, cough, rhinorrhea; most cases manifest as a mild upper respiratory infection or a primary viral pneumonia/pneumonitis. Clinically, infections by the influenza viruses or other respiratory viruses are indistinguishable. Gastrointestinal complaints, including
An influenza virus infection typically presents as general malaise with fever, headache, cough, rhinorrhea; most cases manifest as a mild upper respiratory infection or a primary viral pneumonia/pneumonitis. Clinically, infections by the influenza viruses or other respiratory viruses are indistinguishable. Gastrointestinal complaints, including