H1N1 influenza (swine flu) is a respiratory disease of pigs caused by type A influenza that regularly cause outbreaks of influenza among pigs. Swine flu viruses do not normally infect humans, however, human infections with swine flu do occur, and cases of human-to-human spread of swine flu viruses has been documented.

How Johns Hopkins is responding to the outbreak
Gabor Kelen, M.D., Director, Johns Hopkins Office of Critical Event Preparedness and Response puts the swine flu into perspective. Listen to the podcast

The World Health Organization  Epidemic and Pandemic Alert and Response
The World Health Organization is coordinating the global response to human cases of swine influenza A (H1N1) and monitoring the corresponding threat of an influenza pandemic. Information on this page tracks the evolving situation and provides access to both technical guidelines and information useful for the general public. http://www.who.int/csr/disease/swineflu/en/index.html

What is swine flu?
http://cdc.gov/swineflu/swineflu_you.htm

Frequently Asked Questions About Swine Flu
http://www.who.int/csr/swine_flu/swineflu_qanda_20090425.pdf

Key facts about Swine Influenza (Swine Flu)
http://cdc.gov/swineflu/key_facts.htm

CDC Human Swine Flu Investigation
http://cdc.gov/swineflu/investigation.htm

Human Swine Flu CDC Brochure
http://cdc.gov/swineflu/pdf/brochure.pdf

Everyday Preventative Actions
http://www.cdc.gov/flu/protect/habits.htm