signssymptomsprevention

signssymptomsprevention - Lyme Disease and other tick-borne...

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1 Lyme Disease and other tick-borne Diseases Hunterdon County Department of Health
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3 What Is Lyme Disease? Bacterial Infection Primarily transmitted by ‘Black-legged’ (Deer Tick) Affects both animals and humans Hunterdon remains in top 5 counties for incidence
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4 Mouthparts of a tick (barbed hypostome in center anchors tick as it feeds)
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5 Reported Lyme Disease Cases Number of Confirmed Lyme Disease Cases by Report Year – Hunterdon County, 1988 to 2008
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6 Typical Seasonal Distribution of Reported Lyme Disease Cases
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7 LYME cases by Age 1 9 1 8 1 1 1 6 2 3 3 0 1 3 1 0 5 1 3 1 7 3 9 3 5 5 0 4 0 3 4 6 0 0 10 20 30 40 50 60 Number of Cases Unknown Age 2 - 9 20 - 29 40 - 49 60 + Male Female
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8 “Family Portrait”
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9 Engorged Nymphal Tick
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10 Tick Facts. .. Ticks must be attached 36 - 48 hours to transmit bacteria In Hunterdon, ~20% of nymphal ticks carry bacteria Nymphal ticks cause majority of Lyme cases Most cases ‘caught’ around the home Nymphal ticks most active late May thru July Adult ticks most active late Oct. and early November.
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11 Wood Tick Larger than Deer Tick Does NOT transmit Lyme
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13 Adult Deer Tick
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14 Three Active Stages Need ‘host’ at each stage (Such as mouse, other animal or person) Not born with bacteria Do NOT fly or jump Attach as host passes by White-footed mice serve as the principal reservoirs of infection on which many larval and nymphal ticks feed and become infected with the LD spirochete.
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This note was uploaded on 12/24/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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signssymptomsprevention - Lyme Disease and other tick-borne...

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