There are many types of Pathogens. What follows is a beta list of the known categories of pathogens

• bacteria
  • Neisseria gonorrhoeae
  • Neisseria meningitidis (meningococcus) - see meningitis
  • Treponema pallidum
  • Staphylococcus aureus
  • Streptococcus pyogenes
  • Escherichia coli
  • Salmonella typhimurium
  • Mycobacterium tuberculosis (tuberculosis)
  • Rickettsiae

• viruseses
  • AIDS (Human Immunodeficiency Virus /HIV)
  • Herpes /HSV (Herpes simplex virus)
  • Warts (papillomavirus), similar viruses are believed to contribute to cervical cancer.
  • SARS (Severe Acute Respiratory Syndrome)
  • Cytomegalovirus
  • Hepatitis (note that Hepatitis A and Hepatitis E are transmitted via the faecal-oral route)
    • Hepatitis B
    • Hepatitis C
    • Hepatitis D
  • Hantaviruses (including the Sin Nombre virus, which causes HPS)
• Molluscum contagiosum

• multicellular parasites including scabies, roundworms

• subviral pathogens such as viroids and prions.

• the CDC's Bad Bug Book lists the most serious food-borne pathogens.