Influenza and RSV are the leading causes of respiratory infections. Influenza viruses consist of three types: Influenza A, Influenza B and Influenza C.
Influenza A viruses are further classified by two membrane proteins, hemagglutinin (H) and neuraminidase (N). In the U.S., Influenza A/H1N1, A/H3N2 and Influenza B are the predominant seasonal viruses. Symptoms of Influenza include fever, chills, headache, malaise, cough, coryza, nausea, vomiting, and diarrhea.
RSV is a common virus that leads to mild, cold-like symptoms in adults, but can cause severe illness in infants, young children, the elderly, and adults with chronic heart or lung disease. Symptoms of RSV infections include nasal congestion, sore throat, cough, sputum production, difficulty breathing, and fever.
Signs and symptoms of Influenza and RSV infections overlap extensively with other infectious causes. Automated and rapid assays that identify patients infected with Influenza and RSV can aid in effective control, proper choice of treatment, and prevention of outbreaks.