For example, anthrax, botulism, chlamydia, cholera, diphtheria, E. coli O157:H7 (actually a specific strain of E. coli also known as “bad” E. coli), epidemic typhus, gas gangrene, gonorrhea, hemolytic-uremic syndrome, leprosy (Hansen’s disease), listeriosis, Lyme disease, meningitis, MRSA, osteomyelitis (infection of bone), peptic ulcers (a.k.a., stomach ulcers), pink eye, plague (bubonic plague or black death), pneumonia (most but not all), salmonellosis, rocky mountain spotted fever, scarlet fever, staphylococcal food poisoning and infections, strep throat, syphilis, tetanus, toxic shock syndrome (most but not all), traveler’s diarrhea, tuberculosis, typhoid fever, whooping cough (pertussis).

Bacteria generally are sensitive to antibiotics, though any given antibiotic is not effective against all bacteria nor any one bacterium susceptible to all antibiotics.

Bacterial diseases that are classified as intoxications, such a food poisonings, also are often not treatable using antibiotics.