Influenza (Flu): Causes, Types, Symptoms, and 9 Early Warning Signs
What Is the Influenza Virus? The influenza virus is an acute, highly contagious viral infection caused by viruses belonging to the Orthomyxoviridae family. It primarily affects the respiratory tract, including the nose, throat, and lungs, and is responsible for seasonal flu epidemics every year as well as occasional global pandemics. Historical Impact of Influenza Although ... Read more


