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Microbial Diseases of the Digestive System
Flash cards for Test 4
22
Microbiology
Undergraduate 2
11/22/2009

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Cards

Term
Dental Caries (tooth decay)
Definition
G+ Bacteria Mouth; caused by Streptococcus mutans; treat with flourides
Term
Staph Food Poisoning
Definition
G+ Bacteria Lower digestive system; caused by Staphylococcus areus; Intoxication from ingesting enterotoxin; most common foods include custards, creams, hams, poultry; symptoms include nausea, vomitting, diarrhea 1-6 hours after digestion; treat by replacing electrolytes and fluids
Term
Salmonellosis
Definition
G- Bacteria Lower digestive system; caused by Salmonella bacteria; Infection 12-36 hr incubation period; symptoms include fever, mausea, abdominal pain, craps, diarrhea; treatment included rehydration; organism common in meats, poultry, eggs; killed by cooking
Term
Typhoid Fever
Definition
G- Bacteria Lower digestive system; caused by Salmonella typhi; transmitted by fecal-oral (unclean water or food); 2 week incubation period; symptoms include fever (104), headache, diarrhea; not too fatal
Term
Shigellosis (bacillary dysentery)
Definition
G- Bacteria Lower digestive system; caused by Shigella sonnei, S. dysenteriae, S. flexneri, S. boydii; more virulent forms produce exotoxin which inhibits protein synthesis; symptoms include diarrhea with blood and mucus, abdominal cramps, fever; not too fatal; treatment includes fluid, electrolytes
Term
Cholera
Definition
G- Bacteria Lower digestive system; found in water, shellfish; produces enterotoxin which causes secretion of electrolytes and water; symptoms include shock, collapse, death, violent vomitting, usually no fever; treatments include replacing fluids and electrolytes
Term
Vibrio parahemolyticus
Definition
G- Bacteria Lower digestive system; caused by vibrio parahemolyticus (requires salt); symptoms include burning in stomach, abdominal pain, vomitting, watery stools; incubation is less than 24 hours; seldom fatal; treat by replacing fluids, electrolytes
Term
Traveler's diarrhea (E. coli)
Definition
G- Bacteria Lower digestive system; caused by E. coli; some strains are pathogenic, enterotoxigenic, enteroinvasive, enteropathogenic; treatment included replacing fluids;
Term
Campylobacter
Definition
G- Bacteria Lower digestive system; part of normal flora; systems include fever, cramps, diarrhea with blood and mucus
Term
Yersiniosis
Definition
G- Bacteria Lower digestive system; caused by Y. enterocolitica, Y. pseudotuberculosis; part of animal intestinal flora; symptoms include diarrhea, fever, headache, abdominal pain; often mistaken for appendicitis
Term
Clostridium perfringens
Definition
G+ Lower digestive system; cause by C. perfringens; associated with meats (high protein content); produces exotoxins in intestinal tract; symptoms include abdominal pain, diarrhea; treatment includes replacing fluids and electrolytes
Term
Bacillus cereus
Definition
G+ Bacteria Lower digestive system; cause by B. cereus; caused by foodborne illnesses when food not properly cooked
Term
Mumps
Definition
Virus in parotid glands (salivary glands); symptoms include inflammation of glands, fever, painful swallowing, may see inflamtion of testes; treated with a vaccine
Term
Hepatitis A
Definition
Virus of the liver; transmitted by fecal-oral; 2-6 week incubation; symptoms include anorexia, nausea, diarrhea, abdominal pain, fever, chills, jaundice (yellowish) liver damage; vaccine available
Term
Hepatitis B (Serum Hepatitis)
Definition
Virus of the liver; transmitted through blood, possibly body fluids; incubation period is 4-26 weeks; symptoms are varied, may be like Hep A; Vaccine available
Term
Hepatitis C
Definition
Virus of the liver; spead through blood to blood contact; develops slower than Hep B.; No vaccine, hard to cultivate in lab
Term
Hepatitis D
Definition
Virus of the liver; uses capsid of Hepatitis B
Term
Hepatitis E
Definition
virus of the liver; mostly in India, Africa, Mexico; transmitted fecal-oral; high mortality rate in pregnant women; no vaccine yet
Term
Aflatoxin
Definition
Fungus in liver; caused by Aspergillus flavus; causes liver damage, cirrhosis; found in foods like peanuts, rice, beans
Term
Ergot Poisoning
Definition
Fungus in liver; caused by Claviceps purpurea; attributed to Salem Witch Trials; can cause gangrene, convulsive disorders, hallucinations; grows best on rye grains
Term
Helicobacter
Definition
G- Bacteria Lower digestive system; no known resivoire; Dr. Marshall used Koch's Postulate to test on himself and proved it was causing stomach ulcers; treatments include antibiotics
Term
Norovirus
Definition
Virus causing Gastroenteritis; generally mild; incubation 24-48 hours; symptoms last 12-48 hours; transmitted fecal-oral
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