BACTERIAL DISEASES RICKETTSIAS Coccus or bacillus Intracellular parasite
BACTERIAL DISEASES
RICKETTSIAS • • • Coccus or bacillus Intracellular parasite Normal host: arthropod (gastrointestinal tract) Transmitted via mouthparts or feces Named after discoverer – Dr. Harold Ricketts
ROCKY MOUNTAIN SPOTTED FEVER RICKETTSIA RICKETTSII
RICKETTSIA RICKETTII
TYPHUS FEVER • Rickettsia prowazekii • Normal host: human body lice and human head lice
RICKETTSIA PROWAZEKII
TYPHUS FEVER SYMPTOM
LYME DISEASE • Normal host: ticks on small mammals
BORRELIA BURGDORFERI
LYME DISEASE SYMPTOM
TETANUS • Causes nerve cells to send continuous messages to the muscles to contract • Symptoms: • • Stiffness of jaw (lockjaw) Stiffness of abdominal muscles Headaches Difficulty swallowing • Can be fatal is untreated
CLOSTRIDIUM TETANI
TETANUS VACCINE “If it has been 10, then do it again. ” - Bob Villa
CLOSTRIDIUM BOTULINUM
BOTULISM • 3 ways of contracting disease • Foodborne (25%) • Wound (3%) • Infant (72%) • Symptoms usually appear 18 – 36 hours after infection
TYPHOID FEVER • Bacteria lives in human bloodstream and intestinal tract • Bacteria shed in stools and contaminates food or water • Causative agent: Salmonella typhi
SALMONELLA TYPHII
TYPHOID FEVER • Mary Mallon (Typhoid Mary) • Early 1900 s in New York
PNEUMONIA
STREPTOCOCCUS PNEUMONIAE
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