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28 Cards in this Set
- Front
- Back
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pathogen
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an organism that invades body tissue, causing tissue damage and disease
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virulence
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ability to overcome host defenses
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5 types of microorganism that can cause infectious diseases
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bacteria, virus, fungi, protozoa, and helminths
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5 places exogenous pathogens exist
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air, food, water, body fluids
objects contaminated with from substances |
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5 place endogenous normal flora exist
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skin, nose, mouth, gastrointestinal tract, and urogenital tract
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A normal flora skin bacteria
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Staphylococcus epidermitis
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A normal flora intestinal bacteria
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Escherichia coli
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6 variables in chain of infection
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-agent (organism),
-reservoir (route by which agent exists and multiplies), -portal of exit (route by which agent leaves the host), -mode of transmission -portal of entry (route by which agent enters new host) -host susceptibility (internal and external enviromental factors that increase or decrease the likelihood that host will develop disease) |
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bats can carry...
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rabies virus
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mosquitoes can carry...
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malaria protozoa
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Soil/dirt can carry...
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tetanus bacteria spores
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Human Immunodeficiency Virus (HIV) attaches to what kind of cells?
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T cells
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What is a trigger for herpes simplex virus?
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stress
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exanthem
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eruption or rash on skin
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7 characteristics of rash
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color
elevation pattern/shape size in cm location distribution drainage |
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Rubeola (Measles) agent
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RNA virus
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Rubeola (Measles) incubation period
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8-12 days from exposure to onset of symptoms
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Rubeola (Measles) infectious period
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ranges from 3-5 before the appearance of rash to 4 days after rash disappears
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Rubeola (Measles) immunity
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natural disease or live attenuated vaccine
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Rubeola (Measles) season
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late winter and spring
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Rubeola (Measles) respiratory symptoms appear after average of how many days?
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10 days
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Rubeola (Measles) three C's
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coryza (profuse runny nose)
cough conjunctivitis |
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Rubeola (Measles) prodrome period symptoms
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fever and three C's: coryza (profuse runny nose), cough, and conjunctivitis
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Rubeola (Measles) prodrome period symptoms last how many days?
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between 1-4 days
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When do Koplik Spots appear in Rubeola (Measles)?
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approximately 2 days before the appearance of rash
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What do Koplik Spots look like?
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small, blue-white spots with a red base that cluster near the molars on the buccal mucosa
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How long to Koplik Spots last?
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3 days, after which they slough off
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Rubeola (Measles) transmission
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direct contact with droplets or less frequently airbone
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