The Types of Flu and How to Prevent It
In general, flu or seasonal influenza an infectious disease and caused by certain viruses. Flu is an infectious disease caused by RNA viruses of the family Orthomyxoviridae (the influenza viruses), that affects birds and mammals.Today influenza divided into several types .
Human Influenza
Cause : H1N1 ata H3N2
Symptoms : fever, muscle pain, weakness, loss of [...]