Task 3-Part 5
conclusion , influenza is an infectious disease caused by RNA viruses of the familia Orthomyxoviridae (the influenza viruses ) , which...Task 3-Part 5
conclusion , influenza is an infectious disease caused by RNA viruses of the familia Orthomyxoviridae (the influenza viruses ) , which attacks the birds and mammals . The most common symptoms of the disease are chills , fever , sore throat , muscle pains , severe headache , coughing, weakness and general discomfort. Show more