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TICK-BORNE DISEASE Presented By Karl Neidhardt. Tick Species and Life Stages Most Likely to Bite Humans in the Eastern U.S. and the Diseases They May.

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Presentation on theme: "TICK-BORNE DISEASE Presented By Karl Neidhardt. Tick Species and Life Stages Most Likely to Bite Humans in the Eastern U.S. and the Diseases They May."— Presentation transcript:

1 TICK-BORNE DISEASE Presented By Karl Neidhardt

2 Tick Species and Life Stages Most Likely to Bite Humans in the Eastern U.S. and the Diseases They May Cause Anaplasma phagocytophilum

3 ZOONOTIC CYCLE

4 COMMON TICK VECTORS

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6 Borrelia burgdorferi Agent of Lyme Disease

7 Ixodes scapularis Blacklegged Tick

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10 What are the symptoms of Lyme Disease?  An EM rash is the most definitive sign.  Early stages produce flu like symptoms.  Later symptoms include problems with the muscles and joints, brain and nervous system, heart and circulation, digestion, reproductive system and skin.

11 ERYTHEMA MIGRANS

12 Secondary Rash

13 LYME ARTHRITIS

14 Neurological Manifestations Bell’s Palsy

15 Domestic Animals Dog with Lyme Arthritis Cat with B. burgdorferi in eye Horses Wild animals are asymptomatic

16 Check Pets For Ticks And Use Repellent (available from Vet.)

17 BABESIOSIS Babesia microti Vector: Ixodes scapularis

18 EHRLICHIOSIS HGE - Human Granulocytic Ehrlichiosis HGA - Human Granulocytic Anaplasmosis HME - Human Monocytic Ehrlichiosis

19 Ehrlichia Life Cycle

20 Amblyomma americanum Lone Star Tick

21 LONE STAR TICK PROGRESSIVE ENGORGEMENT

22 Vector: American Dog Tick RMSF - Rocky Mountain Spotted Fever Agent: Rickettsia rickettsii

23 RMSF RASH Foot Hand

24 Dermacentor variabilis American Dog Tick

25 1990-2000 TULAREMIA American Dog Tick Lone Star Tick Ulcer

26 SPECIES COMPARISON

27 TICK RANGES Lone Star Tick American Dog Tick Blacklegged Tick

28 Peromyscus leucopis White footed Mouse Range ( green ), Hanta Cases ( red ) Peromyscus maniculatus Deer Mouse

29 TICK HABITAT

30 SURVEILLANCE Flagging

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32 Study Site 0.5 kilometers Three CO 2 Traps per Sampling Site

33 Sites in blue indicate Amblyomma americanum nymphs and/or adults positive for Ehrlichia chaffeensis shown over 90% population contours for nymphs and adults. 1999 2001 3 3 n =1295, tested = 1295n = 187, tested = 187 2000 6 6 2 2 n = 1068, tested = 1068

34 Ft AP Hill Jamboree Area Threat Map Probability of Encountering Lone Star Ticks Red = Higher Yellow = Lower Green = Unlikely

35 PERSONAL PROTECTION Wear light colored clothing. Blouse pants inside socks.

36 PERSONAL PROTECTION Buddy Checks Prompt Tick Removal

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38 Repellents DoD Repellent System

39 Stop complaining Billy, It’s either this, the suit or hose.

40 CONTROL Brush Removal Targeted Backpack Spraying

41 Prescription Burns

42 ALTERNATIVE CONTROL STRATEGIES DEER FEEDING STATION Feeding corn treated with Doramectin for Systemic Tick Control

43 4-POSTER Deer Treatment Bait Station Market Rep: American Lyme Disease Foundation e-mail: davidlweld@aldf.com Supplier: CR Danials Inc. Ellicott City, MD Contact: Andy Szulinski, 1-800-933-2638, ext 2481 e-mail: ars@dandux.com Pesticide: Y-TEX, 4-Poster Tickicide, 10.0% permethrin

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47 QUESTIONS ? Karl Neidhardt, USCHPPM-North, ESD 4411 Llewellyn, Ft Meade, MD 20755-5225 E-mail: karl.neidhardt@na.amedd.army.mil


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