This helps prevent the spread of a virus that may cause a cold or influenza.

If transmission does cause human influenza, it is called zoonotic swine flu.

Viruses that cause equine influenza were first isolated in 1956.

All known viruses that cause influenza in birds belong to the species influenza A virus.

One was the misperception that the vaccine causes influenza.

Its footprints alone can cause influenza if a person or Pokémon were to come in contact with it.

It includes those viruses which cause influenza.

LAIV is made from weakened virus and does not cause influenza.

This raises the possibility that more antigens than we realize may be capable of causing pandemic influenza.

When asked if antibiotics were effective against viruses, like those that cause colds and influenza, 60 percent of patients said they were.