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19 Cards in this Set
- Front
- Back
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ZOONOTIC DIEASE
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over past 150 years humans have induced dramatic fluctuations in the DER NUMBER in eastern NOrht AMerica which have triggered the emergence and resurgence of this disease
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QUESTING
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how the ticks attactch to a host
-they do not fly, they sit on blades of grass with their top legs out and attach to animals as they pass by |
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what % of their life do ticks spend off host, questing?
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90%
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diff between active and passive questing
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ACTIVE= ticks that use their eyes
PASSIVE= ticks that don't have eyes (ticks are a kind of mite) (coz stimuli movement) |
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The identifier of a tick is the spot on their back, what is it called?
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SCUTUM
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what are the 3 most common types of ticks? (on people)
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1. bBLACK LEGGED = deer tick
2. LONE STAR = aubundant and agressive in TN, cause EHRLICHIOSIS 3. BROWN TICK/ WOOD TICK= dog tick |
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about how long will a tick be on a host?
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7 days
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do ticks have stomach acid?
how do they digest the blood? |
NO, none at all
by immediately absorbing the nutrients into the CELL WALLS, then they will put blood back -pathogens are transferred in their backwash |
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what are the fast transfer pathogens?
what is a slow transfer? |
RMFS and HME
LYME DISEASE- not much in TN Blacklegged tick carries lyme disease slow over 48 hrs |
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when are adult ticks active?
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winter
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WHAT are some tick borne diseases?
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1. lyme
2. SOUTHERN TICK ASSOciated rash illness 3. rocky mountian spotted fever |
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bacterium---> tick ----> disease in humans
1. Lonestar -Amblyomma americanum 2. American Dog tick=wood tick -Dermacentor variabilius 3. Gulf Coast Tick - Amblyomma maculatum 4. Black legged tick= deer tick - txodes scapularis |
BACTERIUM DISEASE IN HUMANS
1. Ehrlliichia chaffeensis -------- Ehrilichiosis (HME) Ehrlichia ewingii----------------- Ehrilchiosis (EWE) 2. Rickettsia rickettsia------------- Rocky Mtn SPotted fever 3. Ricksettsia parkeri ------------- R. parkeri rickrrsiosis 4. Borelia burgdorferi------------ Lyme Diease Anaplasma ----------------------- Anaplamosis Babesia microti------------------ Babesiosis |
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in winter 2013 ticks were collected per hour, what was the mean average per hour?
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26 ticks
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which state and city had the most ticks that were I scapularis?
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naval Base Groton, CT
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how do humans mainly get lyme disease?
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from bite of NYMPHAL I. scapulars ticks
(larvae aren't infeced, adults are easier to see and remove) |
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Erythema Migrans (EM) stands for what and where does it come from?
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= “Bulls-eye” rash
from post exposure to Black legged tick |
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Petechial Rash is what and comes from where ?
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Rocky mountain spotted fever (late stage) post exposure to american dog tick
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TBD rates are increasing ..... in TN RMSF the highest year was ?
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between 2006 and 2007
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what is the main concern in TN?
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EHRLICHIOSIS
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