Epstein-Bar virus

Disease: Burkitt's lymphoma and Infectious mononucleosis. MOT: oral contact.

Ebola virus

Disease: hemorrhagic fever. MOT: body fluids, indirect contact.

Dengue virus

Disease: breakbone fever. MOT: mosquitoes.

Hepatitis A virus

Disease: hepatitis A (infectious hepatitis). MOT: fecal-oral.

Hepatitis B virus

Disease: hepatitis B (serum hepatitis), hepatic cancer. MOT: blood transfusion and sexual contact.

Hepatitis C virus

Disease: hepatitis C (Non A, Non B hepatitis; chronic hepatitis), hepatic cancer. MOT: blood transfusion and sexual contact.

Herpes simplex -1

Disease: oral herpes (cold sores). MOT: direct and sexual contact.

Herpes simplex -2

Disease: genital herpes. MOT: direct and sexual contact.

Human immunodeficiency virus

Disease: Acquired Immunodeficiency Syndrome. MOT: blood and sexual contact.

Influenza virus

Disease: influenza. MOT: airborne.

Norovirus/Norwalk

Disease: intestinal illness. MOT: direct contact or ingestion (usually on cruise ships).

Papilloma virus

Disease: benign tumors, warts, cervical and penile cancers. MOT: direct and sexual contact.

Polio virus

Disease: poliomyelitis. MOT: fecal-oral.

Rabies virus

Disease: rabies. MOT: bite and saliva.

Respiratory syncytial viruses (RSV)

Disease: croup and pneumonia in infants. MOT: airborne.

Sin Nombre virus

Disease: Hantavirus pulmonary syndrome. MOT: inhaling rodent urine or feces.

Rubeola virus

Disease: measles. MOT: airborne.

Rubella virus

Disease: German measles. MOT: airborne and congenital.

Mumps virus

Disease: mumps. MOT: airborne and contact.

Variola major virus

Disease: smallpox. MOT: contact.

Varicella Zoster virus

Disease: chickenpox and shingles. MOT: airborne and direct contact with lesions.

Zika virus

Disease: microcephaly. MOT: mosquitoes, sexually, pregnancy, blood.

Acanthamoeba spp.

Disease: keratitis, blindness. MOT: freshwater contact (contact lens wearers).

Balantidium coli

Disease: balantidiasis, dysentery. MOT: fecal-oral.

Cryptosporidium parvum

Disease: cryptosporidiosis. MOT: fecal-oral.

Entamoeba histolytica

Disease: amoebic dysentery, amoebiasis. MOT: fecal-oral.

Enterobius vermicularis

Disease: pinworm. MOT: fecal-oral.

Giardia intestinalis/lamblia

Disease: giardiasis. MOT: fecal-oral.

Leishmania spp.

Disease: cutaneous or visceral leishmaniasis. MOT: sand flies.

Naegleria fowleri

Disease: meningoencephalitis, brain eating amoeba. MOT: swimming in warm freshwater.

Plasmodium spp.

Disease: malaria. MOT: Anopheles mosquito.

Taenia solium

Disease: cysticercosis, epilepsy. MOT: fecal-oral, eating undercooked pork.

Trichinella spiralis

Disease: trichinosis (muscle cysts). MOT: eating undercooked meat (usually pork).

Toxoplasma gondii

Disease: toxoplasmosis. MOT: fecal-oral (usually cats).

Trypanosoma brucei

Disease: African sleeping sickness. MOT: tsetse fly.

Trypanosoma cruzi

Disease: Chaga's disease. MOT: kissing bugs.

Trichomonas vaginalis

Disease: vaginitis. MOT: sexual contact.