What is the main cause of Influenza?

Influenza is primarily caused by influenza viruses, which belong to the Orthomyxoviridae family. These viruses can mutate and vary from season to season, leading to different strains that can cause illness. Understanding that influenza is viral in nature is crucial, as it differentiates it from other respiratory ailments caused by bacteria, such as pneumonia, or by viral agents that lead to the common cold. The influenza viruses specifically target the respiratory system and can lead to symptoms such as fever, chills, and body aches, which are characteristic of this infection. This knowledge is essential for accurate diagnosis, treatment decisions, and public health responses during flu seasons.