BACTERIOLOGY Flashcards
Escheria coli (e.coli)
Gram negative rod
Facultative
Spread: common in colon, fecal-oral transmission / food contamination
Signs: diarrhea, bloody stool, meningitis like sxs
Conditions: travelers sickness
Vibrio cholerae
Gram negative rod
Facultative
Spread: contaminated WATER, food, seafood
Signs: Hypovolemic shock, diarrhea, dehydration
Yersina Pestis
Gram negative rod Facultative Spread: fleas that were infected by rats Signs: pneumonia like- sepsis, death Condition: black plague
Neisseria gonnorheae
Gram negative cocci Aerobic Spread: Sexually transmitted disease Signs: discharge, painful urination/intercourse Condition: gonorrhea *produces exotoxin
Rickettsia ricketsii
Gram negative cocci Aerobic Spread: tick bite Signs: high fever, malaise Condition: Rocky mountain fever
Treponema Pallidum
Gram negative spirochete (spiral/corkscrew shape) Aerobic Spread: Sexually transmitted Signs: skin lesion; CHANCRE Condition: Syphilis
Mycobacterium
Acid fast Rod Aerobic Spread: airborne/aersol Signs: respiratory cough/sob/chest pain Condition: TB
Staphylococcus aureus (enterotoxin)
Gram positive cocci
facultative anaerobe
Spread: community & healthcare; normal in healthy people infection on direct contact
Signs: cellulitis sxs
Conditions: TSS, skin abscess, food poisoning
Streptococcus pneumoniae
Gram positive cocci
facultative anaerobe
Spread: normal in nasopharynx; immunocompromised - via respiratory droplets
Signs: cough, congestion
Conditions: pneumonia, sinusitis, meningitis
Listeria monocytogenes
Gram positive rod
Facultative anaerobe
Spread: sporadic/ small epidemics usually FOOD borne to immunocompromised (i.e. fetal pregnancy)
Signs: flu-like symptoms in pregnant others; spontaneous abortion; fetal meningitis
Clostridium botulinum
Gram positive rods
Anaerobic
Spread: can foods (contaminated with botulism toxin)
Signs: paralysis, dysphagia
Clostridium difficile
Gram positive rods
Spread: SPORES via inhalation from soil, air, water through human/animal feces contaminate food products
Signs: severe diarrhea and dehydration
*produces exotoxin
