tick submission in mi local health department, environmental health division maintains tick kits...

Tick Submission in MILocal Health Department, Environmental

Health Division maintains tick kits

Each tick kit contains:– Tick submission form– Instructions– Mailing container

Specimens can be returned to LHD or mailed to Michigan department of Agriculture.

Ear-punch biopsy

Rodent Ear-Punch Biopsy Results 1990-1995

AREA #SPECIMENS #POSITIVEUpper Peninsula 563 132Lower Peninsula 357 0TOTAL 920 132

*Menominee County

Michigan Department of Community Health & Michigan State University.

Recovery

Deer Surveillance

Hunter-killed deer Fall 1988-1990 Over 4,000 deer checked Dermacentor albopictus found

commonly No Ixodes scapularis found

Canine Serosurvey

1992 & 1993

6 private practices

Canine Serosurvey Methods

Random Samples Healthy dogs Serum from heartworm test Blinded study 2 step lab protocal

–Screening IFA/ELISA; W.Blot

Gogeb ic

Houghton

Keweenaw

Iron

Baraga

Marquette

Dickinson

Alger

Delt a

Menominee

Schoolcraft

Luce

Mackinac Chippewa

CheboyganPresque IsleCharlevoix

Antr im Otsego MontmorencyLeelanau

BenzieGrand Traverse Kalkaska Crawford Oscoda Alcona

Manistee W exford Ogemaw Iosco

Mason Lake Osceola ClareGladwin

Arenac

Oceana

Newaygo

Mecosta IsabellaMidland

Bay

Huron

Muskegon

Montcalm Gratiot Sag inaw

TuscolaSan ilac

St. C lairLapeer

ShiawasseeClintonIoniaKentOttawa

Allegan Barry Eaton Ingham Livingston Oakland

Macomb

Van Buren KalamazooCalhoun Jackson W ashtenaw W ayne

Berrien Cass Hillsdale Lenawee MonroeSt. Joseph

Branch

Missaukee

Alpena

Roscommon

Emmet

Genesee

Ontonagon

Journal of Medical Entomology (Volume 35)

3

Canine Serosurvey Results1992 & 1993

Menominee Cnty.1992: 12/1951993: 13/104

Leelanau Cnty.1993: 0/31

Kalamazoo Cnty.1993: 0/280

Berrien Cnty.1993: 1/292

Saginaw Cnty.1992: 0/621993: 1/100

Oakland Cnty.1993: 0/154

Table of specimens from each location

COUNTY

Berrien

Kalamazoo

Leelanau

Menominee

Oakland

Saginaw

--------------------

TOTAL

# SPECIMENS

292

280

31

104

154

100

961

Western Blot Results1993 MI, Canine seroprevalence

COUNTY IgG RESULT COMMENT

Menominee 31 vaccinatedMenominee 18,41,45,66,93 positive?Menominee no bands negativeMenominee 18, 93 positive?Menominee no bands negativeMenominee no bands negativeMenominee 18,41,60,66,93 positive?Menominee 93 negativeMenominee no bands negativeMenominee no bands negativeMenominee 18,93 positive?Menominee 31,34 vaccinatedMenominee no bands negativeBerrien no bands negative

Criteria from RH Jacobson, Cornell U

Seroprevalence Conclusions

Good study design Extremely low level of

seropositive dogs in Michigan Results correlate with other

ecologic & epidemiologic data Menominee county

Gogebic

Houghton

Keweenaw

Iron

Baraga

Marquette

Dickinson

Alger

Delta

Menominee

Schoolcraft

Luce

Mackinac Chippewa

CheboyganPresque IsleCharlevoix

Antrim Otsego MontmorencyLeelanau

BenzieGrand Traverse Kalkaska Crawford Oscoda Alcona

Manistee Wexford Ogemaw Iosco

Mason Lake Osceola Clare Gladwin

Arenac

Oceana

Newaygo

Mecosta IsabellaMidland Bay

Huron

Muskegon

Montcalm Gratiot Saginaw

TuscolaSanilac

St. ClairLapeer

ShiawasseeClintonIoniaKentOttawa

Allegan Barry Eaton Ingham Livingston Oakland

Macomb

Van Buren Kalamazoo Calhoun Jackson Washtenaw Wayne

Berrien Cass Hillsdale Lenawee MonroeSt. Joseph

Branch

Missaukee

Alpena

Roscommon

Emmet

Genesee

Ontonagon

Human Skin Biopsy Results

Borrelia burgdorferi isolation

# Spec.

# Pos.

1990 1991 1992 1993 1994 1995 1996 1997 1998

3 4 4 2 22 14 8 16 11

0 0 2 0 3 0 3 3 2

Endemic Area

Menominee CountyFactors contributing to Lyme Disease

UP banana belt; warmer temperatures Rural ecology; emphasis on outdoor life and

hunting Landscape of forest, abandoned dairy farms,

active dairy farms, waterways; mixture of southern deciduous and northern boreal forest

Northern limit of white-footed mouse distribution

Extremely high deer density

www.michigan.gov/documents/

Where might Lyme Disease emerge next?

South West Michigan–A population of Ixodes Scapularis

was recently found in NE Indiana, bordering Michigan.*

Coastal Counties of Michigan–Bird migration has been a source

of tick dispersal. **

Gogebic

Houghton

Keweenaw

Iron

Baraga

Marquette

Dickinson

Alger

Delta

Menominee

Schoolcraft

Luce

Mackinac Chippewa

CheboyganPresque IsleCharlevoix

Antrim Otsego MontmorencyLeelanau

BenzieGrand Traverse Kalkaska Crawford Oscoda Alcona

Manistee Wexford Ogemaw Iosco

Mason Lake Osceola Clare Gladwin

Arenac

Oceana

Newaygo

Mecosta IsabellaMidland Bay

Huron

Muskegon

Montcalm Gratiot Saginaw

TuscolaSanilac

St. ClairLapeer

ShiawasseeClintonIoniaKentOttawa

Allegan Barry Eaton Ingham Livingston Oakland

Macomb

Van Buren Kalamazoo Calhoun Jackson Washtenaw Wayne

Berrien Cass Hillsdale Lenawee MonroeSt. Joseph

Branch

Missaukee

Alpena

Roscommon

Emmet

Genesee

Ontonagon

32

32

Targeted Active Surveillance Area 1998 Physician Participation

5

10

3

County # participating phys./ # phys. contacted

Allegan 32/37 Berrien 29/66 Cass 5/15 Van Buren 10/34 Ottawa 3/6

Project objectives:(1) Develop SW Michiganas test site for quantitativeLyme disease ecologicalrisk assessment(2) Enroll vet clinics in SWMichigan as sentinels for ticks and canine sera(3) Trap rodents at new sites,Inspect for ticks, isolateB. burgdorferi(4) Check locally shot deerfor ticks

GIS Risk Model Test Region

Dept Microbiology & Molecular Genetics Mich State Univ

Is lower Michiganunder invasion by I.scapularis ticks, and “Lyme disease?”

If so, does this providean opportunity to testand improve the risk mapbased upon tick habitatsuitability?

2/1,000 seropositive dogs

4/300 B. burgdorferipositive rodents

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