MCB 2010: Microbiology Lecture Final
Exam Ch. 20
Defenses of the Digestive Tracts - ANS-- All intestinal surfaces are coated with mucus
- Secretory IgA
- Peristalsis
- Saliva contains lysozyme and lactoferrin
- Stomach is highly acidic
- Bile is antimicrobial
- Gut-associated lymphoid tissue
Bacteria of the Mouth - ANS-Pellicle - From saliva
Acute Diarrheal Infections - ANS-Diarrhea
- > 3 loose stools in a 24-hour period
- Often accompanied by fever, abdominal pain, cramping, nausea, vomiting, and
dehydration
- Most episodes are self-limiting
Salmonella - ANS-Bacteria - Salmonellosis
- S. enteritica, S. paratyphi, S. hirschfeldii, S. typhimurium, Arizona hinshawii (reptiles)
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