Common Tickborne Illnesses Scott Cohen, M.D., M.B.A., Medical - - PowerPoint PPT Presentation

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Common Tickborne Illnesses Scott Cohen, M.D., M.B.A., Medical - - PowerPoint PPT Presentation

Dec 12, 2022 265 likes •649 views

Chenango County Department of Public Health Spring Fever March h 6, 2020 Common Tickborne Illnesses Scott Cohen, M.D., M.B.A., Medical Director Chenango County Health Department Tickborne Illnesses Goals/Objectives To review the most

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Chenango County Department of Public Health Spring Fever

March h 6, 2020

Common Tickborne Illnesses

Scott Cohen, M.D., M.B.A., Medical Director Chenango County Health Department

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Tickborne Illnesses

Goals/Objectives

  • To review the most common tickborne illnesses

(admittedly only a small fraction arthropod borne diseases)

  • Typical presentation
  • Geographic distribution
  • Etiologic agent “The bug”
  • Treatment
  • We will leave time at the end for related questions

AND discussion of other contemporary issues such as CoVID19 if there are concerns.

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Leading Tickborne Diseases in the U.S.

  • Lyme disease (Borrelia burgdorferi)
  • Rocky Mountain spotted fever (Rickettsia

rickettsii)

  • Ehrlichiosis(Ehrlichiachaffeensis, others)
  • Anaplasmosis(Anaplasmaphagocytophilum)
  • Babesiosis(Babesiamicroti)

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Distribution of Key Tickborne Diseases, 2014

Diseases are reported to CDC by county of

  • residence. Each dot

represents one case. The county where the disease was diagnosed is not necessarily the county where the disease was acquired.

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Blackl cklegg egged ed (Deer) er) Tick Lyme disease Anaplasmosis Babesiosis Ehrlichiosis Powassan virus disease Borrelia miyamotoi disease

3 Main Ticks of Public Health Concern

American ican Dog (Wood)

  • od) Tick

Rocky Mountain Spotted Fever Tularemia Lone Star Tick Ehrlichiosis Tularemia Heartland virus disease Bourbon virus disease Southern Tick-Associated Rash Illness (STARI)

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Selected Tick Vectors

Transmit pathogens that cause the following diseases:

  • Lyme disease
  • Anaplasmosis
  • Babesiosis
  • Powassan virus disease
  • Borrelia miyamotoidisease
  • Ehrlichiosis
  • Tularemia’
  • Rocky Mtn. Spotted Fever
  • Tularemia
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Tick Life Stages

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Blacklegged Tick Life Cycle

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Larva Nymph Adult

Blacklegged Tick Life Stages

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Engorged Adult Female Blacklegged Tick

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Questing

What blackleg klegged ged ticks ks do do:

  • Search for a host from the tips of low-growing vegetation
  • Sense body chemicals and other cues from potential hosts
  • Climb onto a person or animal near ground level as they walk by

What blackleg klegged ged ticks ks don’t do:

  • Jump
  • Fly
  • Fall from treetops
  • See
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Other Tick Prevention Methods

  • Tumble dry clothing on high for ≥ 6 (dry) - 60 (wet) minutes
  • Keep lawn and trails mowed short
  • Remove leaf litter and brush
  • Create a barrier between your yard and woods
  • Talk with your vet about tick preventatives for your pets

Image courtesy of Kirby Stafford, Connecticut Agricultural Experiment Station, New Haven

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How to Remove a Tick

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Questions?

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Lyme Disease

Caused by spirochete Borrelia burgdorferi (and newly discovered Borrelia mayonii)  Occurs in areas of North America, Europe, and Asia. Approx 30,000 cased reported annually in US

Transmitted in US by blacklegged ticks

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Erythema Migrans (EM)

  • 70-80% of cases
  • ~7-14 days after tick bite
  • Expands over days
  • Rarely painful
  • Distinguish from allergic reaction
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Atypical EM Presentations

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Disseminated and Late Lyme Disease

Facial palsy

Summer months May be bilateral

Meningitis Arthritis

Intermittent Oligoarticular

Late-stage neurologic

Peripheral neuropathy

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Questions?

Tick Borne illess? Others i.e. Coronavirus COVID19?

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THANK YOU!

Scott Cohen, M.D., M.B.A. Chenango County Health Department

Phone

607-337-1660

Email

Scott.cohen@bassett.org