How to differentiate between type A and type B influenza

Influenza A and influenza B are two distinct types of influenza viruses. The influenza A virus has high pathogenicity and variability, can spread without seasonal restrictions, has a wide epidemic range, and carries a relatively high mortality rate; it is the most common influenza pathogen worldwide. In contrast, the influenza B virus has lower pathogenicity, less variability, and primarily circulates during spring and autumn with milder outbreaks and a relatively lower mortality rate. Therefore, it is important to correctly understand the differences between influenza A and B, and based on these characteristics, implement effective preventive measures to control the spread of influenza A and minimize the risk of influenza B infection in the population.