NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,188 terms related to cancer and medicine.
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- influenza A virus
- listen (IN-floo-EN-zuh … VY-rus)
- One of three types of virus that cause the illness called influenza (flu). The influenza A virus can infect people, birds, pigs, horses, and other animals. It is the main cause of most influenza epidemics.