WebOct 1, 2024 · The flu—or influenza—is a highly contagious respiratory virus caused by one of three different virus types: influenza A, B, or C. The main way that illnesses like colds and the flu spread from person to … WebJan 12, 2024 · There are 4 types of seasonal 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 hemagglutinin (HA) and the neuraminidase (NA), the proteins on the surface of the virus.
COVID-19 vs. flu: Similarities and differences - Mayo Clinic
WebDec 2, 2024 · Understanding Flu Viruses Types of Flu Viruses Flu A and B viruses are responsible for seasonal flu epidemics more commonly known as the flu... How Flu Viruses Can Change Flu viruses can change in two different ways—antigenic drift and antigenic shift. Transmission of Flu Viruses from Animals to ... WebInfluenza, commonly known as " the flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, … biostatistics online course ut
Understanding Flu Viruses CDC
WebInfluenza B virus (IBV) and Influenza C virus (ICV) primarily infect humans, and Influenza D virus (IDV) is found in cattle and pigs. IAV and IBV circulate in humans and cause seasonal epidemics, and ICV causes … WebFlu viruses are divided into 3 types: Influenza types A and B. These 2 types of viruses cause widespread illness (epidemics) almost every winter. They often lead to more people needing to go to the hospital, and more people dying from the flu. Public health officials focus on stopping the spread of types A and B. WebThere are more than 200 viruses that can cause a common cold with 20-30% caused by "unknown" bugs. See a list of the most common virus types that cause colds. daiso long dishwashing gloves