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MICRO2
Infectious Disease
| Question | Answer |
|---|---|
| PROCESS OF COLONIZATION | PROCESS OF COLONIZATION |
| What must first occur before an organism can start making trouble? | It must first stick by evading host defense |
| What is the process of colonization? List steps | Site specificity, adherence, and microbe growth |
| What influences adhesion? | Chemical specificity |
| Define microbiota and carrier state: | Microbiota: flora; carrier state: most people will get disease, but some won't |
| Give examples of sterile sites: | Our brain, most of our body |
| MICROBE-HOST RELATIONSHIP | MICROBE HOST RELATIONSHIP |
| DEFINE NON-PARASITES: | Won't drain you of resource |
| Give examples: | Saphrocytes, Mutalism, commensial microbes |
| What are saphrocytes? | Live on dead stuff |
| Mutalism: | Both benifit |
| Commensial microbes: | Host not affected |
| Systemic: | Spread by blood of lymphatic system |
| Bacteremia: | Presence of bacteria in blodd that aren't growing |
| Septacimia: | Bacteria growing in our bodd |
| Virelemia; | Reproducing viruses in blood |
| Toximia: | Toxin in blood |
| PROCESS OF DISEASE | PROCESS OF DISEASE |
| Adhesion; | Attachment molecule |
| HARMFUL MICROBIAL PRODUCTS | HARMFUL MICROBIAL PRODUCTS |
| What are some virulence factors that are produces by the microbe? | Endotoxins and exotoxins |
| What are endotoxins? | Carbs or lipids |
| What cell type releases them? Give example: | Gram --; like the LPS and lipid A |
| What is an assay of endotoxin? | LAL Assay in lab--from horseshoe crab |
| Compositon of exo vs. endo? | Protein vs. carbs and lipids |
| Production of exo vs. endo? | Active release vs. component of cell |
| Target of exo vs. endo? | Specific (enzyme) vs. general (immune response) |
| Stability of exo vs. endo? | Not stable vs. very stable |
| From which cell type are exotoxins released? | Gram + |
| From which cell types are endotoxins released? | Gram -- |
| Do we want to release endotoxins: | NO NO NO NO NO!!!! |
| What do fungi and parasites lead to? | Allergic reactions |
| Toxicity of Exo vs. endo | High tox vs. low tox |
| So, how much of a dose do you need for exo vs. endo? | low vs. high dose |
| Fever response of exo vs. endo: | No fever vs. fever |