Influenza virus a is more severe though A and B can be responsible for pandemic. Type A is seen in early spring and early winter. Type B is seen at any time of the year. Type A infects birds, humans and animals while B infects mammals. Type A has several serotypes but Type B does not.

1. What is influenza type b?
2. Difference between morning sickness and stomach bug
3. What is the difference between influenza a and b
4. What is the difference between influenza a and influenza b?
5. Difference between stomach bug and morning sickness
6. Having influenza a and b at the same time