Staphylococcus aureus

• Staphyloccal enterotoxicosis
• Symptoms

Staphylococcus aureus: heat stable enterotoxin, boiling for 30 mins wont destroy the toxin.

Symptoms: 1-6 hour incubation period, Nausea - cramping - vomiting(triggers "Vagus nerve" --> vomit reflex center), Diarrhea Last 18-24 hours

Escherichia coli: diff. strans = diff. effects

1. Enterohemorrhagic
2. Enterotoxigenic
3. Enteroinvasive
4. Enteropathogenic

1. Enterohemorrhagic - E. coli 0157:H7 Cause of the famous '93 "Jack in the box killer" epidemic. May cause Hemolytic Uremic Syndrome (HUS) in infants and small children.
2. Enterotoxigenic - "Traveler's diarrhea" & "Infant diarrhea". Treat with Pepto-Bismol 2-4 times per day.
3. Enteroinvasive - porduces a Shigella like enterotoxin. Causes ulceration and lesions.
4. Enteropathogenic - Epidemic diarrhea in children. Outbreaks may occur in Day car centers.

Clostridium perfringens

• Clostridial gastroenteritis