http://en.wikipedia.org/wiki/Infectious_disease

http://www.medicinenet.com/infectious_disease/focus.htm

http://www.answers.com/topic/infectious-disease

http://www.nlm.nih.gov/medlineplus/infectiousdiseases.html

http://www.cdc.gov/eid

http://www.who.int/topics/infectious_diseases/en/

http://www.cdc.gov/ncidod/diseases/eid/

http://www.medscape.com/infectiousdiseases

http://www.mayoclinic.com/health/infectious-diseases/DS01145

http://emedicine.medscape.com/infectious_diseases