MCB 100 1st Edition Lecture 33 Outline of Last Lecture I. MycobacteriumII. ActinomycetesIII. Gram Negative BacteriaIV. Bacteria that are symbiotic with plantsV. BrucellaVI. Rickettsia VII. Neisseria VIII. Bordetella IX. Pseudomonas Outline of Current Lecture I. Glycolytic facultative anaerobesCurrent Lecture I. Glycolytic Facultative anaerobes A. Enterobacteriaceaei. Entero: intestines ii. Many are found in mammalian large intestineiii. Facultative anaerobes that can ferment glucose iv. Oxidase negative, catalase positive A. Traveler's Diarrhea i. E coli- common causeii. Coliforms iii. Lactose fermenters iv. Transmitted via fecal/oral route v. Rehydrate patient A. Salmonella typhi i. Salmonella bacteria live in bird, reptile, and mammalian intestinesii. Bind to intestinal cells, inject proteins into host cell that cause a normally nonphagocytic cell to engulf the bacteria iii. Bacteria grow inside endocytic vesicles- eventually killing host cell iv. Some strains enter blood and spread throughout body B. Salmonellosisi. Salmonella species (S. typhi)ii. Transmitted in contaminated food or water (fecal- oral)These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.iii. Causes diarrheaiv. Typhoid fever is an infection of the bloodv. Incubation time: 8-48 hours vi. Typhoid symptoms: fever, headache, muscle pain, malaise, loss of appetite, rose spot rash, intestinal hemorrhage, kidney failure, peritonitis B. Shigellosisi. Several Shigella speciesii. Shigella bacteria invade cells of intestinal epithelium- toxin disrupts host cell protein synthesis iii. Mortality rates can be high as 20%iv. Bacillary dysentery (bloody diarrhea)v. Associated with poor sanitationvi. Not killed by stomach acid vii. Shiga toxinviii. Treatment- rehydrate
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