Similar term(s): Flu.
Influenza is a highly infectious
viral disease that affects mainly the nose,
throat, bronchi and, occasionally, lungs.
It is a contagious illness characterized by fever, headaches, sore throat, body
aches and congestion of the nose.
Influenza can also lead to pneumonia and
death especially among children, the elderly, and those with serious medical
The virus is transmitted easily from
person to person via droplets and small particles produced when infected people
cough or sneeze. Influenza tends to spread rapidly in seasonal
Source: GreenFacts, based on FAO, Agricultural
Avien Influenza Glossary