Disease Agent Transmission
AIDS (acquired immune deficiency syndrome Virus Contact of body fluid (semen, blood, vaginal secretions) with that of an infected person. Sexual contact and sharing of unclean paraphernalia for intravenous drugs are the most common means of transmission.
Blastomycosis Fungus Inhaling contaminated dust
Botulism Bacteria Consuming contaminated food
Chicken pox Virus Direct or indirect contact with infected person
Common cold Virus Direct or indirect contact with infected person
Diphtheria Bacteria Direct contact with infected person
Encephalitis Virus Mosquito bite
Gonorrhea Bacteria Sexual contact
Hepatitis Virus Direct or indirect contact with infected person
Herpes simplex Virus Direct contact with infected person
Histoplasmosis Fungus Inhaling contaminated dust
Hookworm Nematode Contact with contaminated soil
Infectious mononucleosis Virus Direct or indirect contact with infected person
Influenza Virus Direct or indirect contact with infected person
Lyme disease Bacteria Deer tick bite
Malaria Protozoa Mosquito bite
Measles Virus Direct or indirect contact with infected person
Mumps Virus Direct or indirect contact with infected person
Pertussis (whooping cough) Bacteria Direct or indirect contact with infected person
Poliomyelitis Virus Direct contact with infected person
Rubella (German measles) Virus Direct or indirect contact with infected person
Scarlet fever Bacteria Direct or indirect contact with infected person
Spotted fever Rickettsia Tick bite
Syphilis Bacteria Sexual contact
Tapeworm Nematode Consuming infected meat or fish
Toxoplasmosis Protozoa Consuming raw meat; contact with contaminated soil
Trichomoniasis Protozoa Sexual contact
Typhus Rickettsia Lice, flea, tick bite
Yellow fever Virus Mosquito bite