Types of Influenza Viruses | Influenza (Flu) | CDC
Sep 18, 2024 · There are four types of influenza viruses: A, B, C, and D. Influenza A and B viruses cause seasonal epidemics of disease in people (known as flu season) almost every winter in the United States.
Different Types of Flu: Influenza A, B, C and more - WebMD
Sep 9, 2023 · There are three types of flu viruses: A, B, and C. Type A and B cause the annual influenza epidemics that have up to 20% of the population sniffling, aching, coughing, and running high...
Understanding the Different Types of Flu
Sep 26, 2023 · There are three types of flu viruses that affect people. They’re known as influenza viruses A, B and C. Influenza A and influenza B viruses are the heavy hitters. They’re the ones that cause the most severe illness and lead to widespread outbreaks. Influenza C viruses cause mild illnesses in people.
Understanding the Different Types of Flu - Verywell Health
Aug 2, 2023 · Three types of flu viruses—A, B, and C—cause seasonal influenza in humans. Influenza D may also have the potential to do so if the potential for future transmission from animals to humans comes to fruition.
Flu (Influenza): Causes, Symptoms, Types & Treatment
Influenza A, B and C are the most common types that infect people. Influenza A and B are seasonal (most people get them in the winter) and have more severe symptoms. Influenza C doesn’t cause severe symptoms and it’s not seasonal — the number of cases stays about the same throughout the year.
Influenza A vs. B: What to Know About the Different Types of Flu
Jul 23, 2024 · There are four different types of influenza viruses: Influenza A, B, C, and D. Influenza A and B cause epidemic seasonal infections nearly every year, but A is more common. Influenza,...
Influenza (Seasonal) - World Health Organization (WHO)
Oct 3, 2023 · There are 4 types of influenza viruses, types A, B, C and D. Influenza A and B viruses circulate and cause seasonal epidemics of disease. Influenza A viruses are further classified into subtypes according to the combinations of the proteins on the surface of the virus.
About Influenza | Influenza (Flu) | CDC - Centers for Disease ...
Aug 13, 2024 · Flu A viruses can be broken down into sub-types depending on the genes that make up the surface proteins. Over the course of a flu season, different types (A & B) and subtypes (only for flu A) of flu circulate and cause illness.
Flu Causes: Types of Influenza Viruses, Contagious ... - WebMD
Sep 14, 2023 · While more than 100 different viruses can cause a cold, only influenza virus types A, B, and C cause the flu. Type A and B viruses cause the large seasonal outbreaks. Type C usually causes...
Learn About Flu - American Lung Association
Nov 4, 2024 · There are three different influenza virus families: A, B and C. Influenza Type A viruses can infect people, as well as birds, pigs, horses, and other animals. There are different strains (or subtypes) of influenza type A viruses, two …