👉 H11N1 is a type of influenza virus that causes H1 subtype pneumonia in humans, causing severe illness and hospitalizations worldwide. It was first identified in 2009 in chickens and later detected in pigs and humans. The virus can spread through close contact with infected individuals or animals who have the virus. This strain of influenza spreads primarily through coughing, sneezing, and drooling, as well as by direct contact with contaminated surfaces like gloves and equipment used for handling