Green: Pandemic Influenza has not arrived and there is no immediate expectation of any spread in the United States. The US continues to be in the planning stages. Individuals, families, communities should continue preparing for and learning about Pandemic Influenza.
Yellow: Avian Influenza is in the United States, however it is not yet spread by person to person contact in the US.
H5N1 is spreading through person to person contact somewhere in the world, but not yet in the US.
Red: H5N1 is spreading through person-to-person contact and has reached the United States. Guidance at this point is to remain in your homes and minimize contact with other people, especially those who may be contagious.