ch 8 pathogens

clostridium species

• tetanus

• botulism

• gas gangrene

• colitis

salmonella typhi

typhoid

bordetella pertussis

whooping cough

mycobacteria species

• tuberculosis

• leprosy

neisseria species

• epidemic meningitis

• gonorrhea

borrelia burgdorferi

lyme disease

treponema pallidum

syphilis

name which shape and disease: staphylococcus aureus

• spherical

• localized and systemic infections

name which shape and disease: group a beta hemolytic streptococcus

• spherical

• pharyngitis

• systemic infection

• muscle necrosis

• hypersensitivity response to organism causes rheumatic fever/ nephritis

group b beta hemolytic streptococcus

• spherical

• UTI

• systemic infection

• newborn infection acquired from vaginal organisms in mother

  • remember group b is for “babes and babies”

streptococcus pneumoniae (pneumococcus)

• spherical

• middle ear and sinus infections

• systemic infection

• lobar pneumonia

neisseria gonorrhoeae (gonococcus)

• cocci

• genital tract infection

• bacteremia causing endocarditis

• osteomyelitis

• septic arthritis

neisseria meningiditis (meningococcus)

• cocci

• meningococcal meningitis

bacillus anthracis

• aerobic spore-forming rods - bacilli

• usually disease of animals

• people infected from contact with wool or animal products

• localized and systemic infection

• potential germ warfare agent

clostridium perfringens

• anaerobic spore-forming rods

• gas gangrene

• muscle necrosis and hemolytic anemia caused by toxin

clostridium tetani

• anaerobic spore-forming rods

• tetanus (lockjaw) - caused by toxin-induced spasm of voluntary muscles

clostridium botulinium

• anaerobic spore-forming rods

• botulism

clostridium difficile

• anaerobic spore-forming rods

• antibiotic- associated colitis

haemophilus influenzae

• gram negative rods

• pulmonary infections

• meningitis in susceptible children

yersinia pestis

• plague

• disease of wild rodents transmitted to humans by fleas

• pneumonic plague

legionella pneumophila

• legionnaires’ disease

• organisms live in water and cause pulmonary infection in persons who inhale aerosolized droplets from showers, air conditions, or other water sourcs

• moist areas

escherichia coli

• gastroenteritis

• UTI

• systemic infection

treponema pallidum

• spirilli

• syphilis

borrelia burgdorferi

• spiril

• lyme disease

mycobacterium tuberculosis

• acid fast bacteria

• pulmonary tuberculosis

examples of pathogenic bacilli - BAD NEWS

• gas gangrene

• tetanus

• botulism

• plague

• anthrax

• cholera

• tuberculosis

• leprosy

• usually cause disease by the exotoxin they secrete