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9 Cards in this Set
- Front
- Back
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List Koch's Postulates
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1. Find evidence of a particular microbe in every case of a disease
2. Isolate that microbe form an infected subject and cultivate it artificially in the laboratory 3. Inoculate a suscpetible healthy subject with the laboratory isolate and observe the resultant of the disease 4. Reisolate the agent from this subject BIG TICKET ITEM |
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What is the definition of infection?
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A condition in which pathogenic microbes penetrate host defenses, enter tissues and multiple
MULTIPLE CHOICE QUESTION |
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What is the definition of disease?
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any deviation form health dispruption of a tissue or organ caused by microbes of their products
MULTIPLE CHOICE QUESTION |
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What is the purpose of resident flora?
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to prevent the establishment of microbes that are not beneficial to the host, therefore disease production is restricted
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In the respiratory tract, where does the colonization of microbes usually take place?
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In the upper respiratory tract
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What are the portals of entry?
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Skin
Gastrointestinal tract Respiratory tract Urogenital tract SHORT ANSWER QUESTION |
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What is the definition of a virulence factor?
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Te ability of the microbe to produce a product that will kill or compromise a hosts defense system
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What is an Infectious dose (ID)?
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The minimum number of microbes required for infection to proceed
microbes with small IDs have greater virulence Lack of IF will not result in infection |
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What are portals of exit?
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Respiratory, saliva
Skin scales Fecal exit Urogenital tract Removal of blood SHORT ANSWER QUESTION |
