Influenza is primarily caused by which type of virus?

Influenza is primarily caused by myxoviruses, specifically the influenza viruses belonging to the Orthomyxoviridae family. This family includes the well-known types of influenza, such as Influenza A, B, and C, which are responsible for seasonal outbreaks of the flu. Myxoviruses have specific characteristics, such as their segmented RNA genome and the ability to undergo antigenic drift and shift, contributing to the virus’s variability and the need for annual vaccinations. This understanding is crucial for athletic trainers, as they need to recognize the impact of influenza on athlete health and the importance of preventive measures during flu season. The other virus types mentioned, such as rhinoviruses, coronaviruses, and paramyxoviruses, are associated with different illnesses and are not responsible for causing influenza.