How is influenza B contracted?
Both influenza A and influenza B are extremely contagious.
People who get either type can spread the virus to others from up to six feet away when they cough or sneeze.
You can also contract the virus by touching a surface that has the virus on it and then touching your nose or mouth..
How do humans get influenza A?
Infected birds shed avian influenza virus in their saliva, mucous and feces. Human infections with bird flu viruses can happen when enough virus gets into a person’s eyes, nose or mouth, or is inhaled.
What type of transmission is influenza?
Influenza virus may be transmitted among humans in three ways: (1) by direct contact with infected individuals; (2) by contact with contaminated objects (called fomites, such as toys, doorknobs); and (3) by inhalation of virus-laden aerosols.
Is influenza A human to human transmission?
Influenza A viruses with a hemagglutinin against which humans have little or no immunity that have reassorted with a human influenza virus are more likely to result in sustained human-to-human transmission and pose a major public health threat of pandemic influenza.
Is influenza spread by airborne transmission?
Influenza is thought to be transmitted primarily by droplets (particles ≥ 5 μm, and settling within 3-6 feet); however, the airborne route (particles < 5 μm remaining suspended in air) has been implicated in special situations, such as aerosol-generating procedures.