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.

Jan 23, 2025 · Three types of flu viruses affect humans: types 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...

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.

Jan 22, 2025 · Influenza A and influenza B are the main strains of flu virus. Type A causes more cases, more severe illness and infects many species. Type B only infects humans.

Feb 3, 2025 · If you're feeling sick, it helps to know the difference between flu A and flu B symptoms, experts say. What to know about the major flu types as respiratory virus season rages on.

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. Seasonal flu is the type of influenza that typically causes illness for just a few months out of the year.

The influenza virus causes flu. 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.

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...

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.

Apr 3, 2024 · There are four types of influenza viruses: A, B, C and D. Human influenza A and B viruses cause seasonal epidemics of disease (known as flu season) almost every winter in the United States. Influenza A viruses are the only influenza viruses known to cause flu pandemics, i.e., global epidemics of flu disease.