About Bird Flu
The cause of bird flu is a type A influenza virus that spreads among birds. The virus then it could spread to other species such as pigs, cats, dogs, tigers, and even humans.
Influenza virus type A has several subtypes that marked the Hemagglutinin (H) and Neuramidase (N). There are 9 variants of H and 14 variants of N. Bird flu virus is contagious when it is the H5N1 subtype has an incubation time of 3-5 days.
Humans who are at high risk of contracting the children. Why, they have the endurance of the weaker, poultry workers, sellers and handlers of poultry and poultry owners home. Incubation period is 1-7 days after which the symptoms of bird flu.