What leads to seasonal influenza epidemics?
Understand the Problem
The question is asking about the factors that cause seasonal influenza epidemics, specifically looking for the correct mechanisms involved in the influenza virus's behavior and evolution.
Answer
Seasonal influenza epidemics are caused by influenza A and B viruses.
Seasonal influenza epidemics are primarily caused by influenza A and B viruses. In temperate climates, they typically occur during the winter months due to changes in human behavior and environmental conditions that facilitate the virus's spread.
Answer for screen readers
Seasonal influenza epidemics are primarily caused by influenza A and B viruses. In temperate climates, they typically occur during the winter months due to changes in human behavior and environmental conditions that facilitate the virus's spread.
More Information
Seasonal influenza epidemics are influenced by various factors, including climate, changes in human behavior during colder months, and the antigenic drift of the virus, which can affect the severity and spread of the virus.
Sources
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