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Lyme Disease Tracking & Prevention Virginia Department of Health. What is Lyme Disease?. A Tick-borne bacterial disease. 3 Stages of Infection. Early Localized Infection (3-30 days) Bull’s-eye rash, muscle or joint aches, fever, headache. Early Disseminated Infection (1- 4 months)

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Lyme Disease Tracking & Prevention

Virginia Department of Health


What is Lyme Disease?

A Tick-borne bacterial disease

3 Stages of Infection

  • Early Localized Infection (3-30 days)

    Bull’s-eye rash, muscle or joint aches, fever, headache

  • Early Disseminated Infection (1- 4 months)

    Severe headaches, pain,

    neurological symptoms

  • Late Disseminated Infection (3 months to years)

    Severe arthritis and swelling of large joints, pain, neurological and cognitive disorders


Common virginia ticks

Lone Star Tick

Blacklegged Tick

American Dog Tick

Common Virginia Ticks


Blacklegged ticks

1/16

Inch (fractions)

Blacklegged Ticks



Role of the Virginia Department of Health

  • Tracking

    Monitoring the annual number and geographic distribution of newly identified Lyme disease cases in VA

  • Preventing disease through education


Tracking Lyme disease

  • Reporting cases to local health departments by healthcare providers.

  • 2. Reporting positive test results to VDH by private laboratories.

  • 3. Use of the CDC’s Lyme disease case definition to identify new cases.

  • 4. Entering identified cases in a database.


State reporting requirements for lyme disease
State Reporting Requirements for Lyme Disease

  • Virginia’s state regulations require that healthcare providers report Lyme disease cases to the local health department (Virginia Administrative Code, 12VAC5-90-80)

  • Contact information for local health departments can be found at: http://www.vdh.virginia.gov/lhd/


Lyme Disease Case Reporting

VDH uses the CDC’s Lyme Disease Surveillance Case Definition which requires:

  • Necessary case information:

Lyme-associated symptoms including erythemamigrans (EM) rash (a.k.a., bull’s eye rash) if present

Date of onset

Complete laboratory testing results

  • Necessary laboratory results:

Positive or equivocal results from ELISA (or IFA) serology as well as positive Western Blot IgM serology if the blood was drawn within 30 days of onset, or

Positive Western Blot IgG serology, if blood was drawn more than 30 days after onset


14

12

10

8

100,000 Population

Lyme Disease Cases per

6

4

2

0

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2009

2004

2008

1992

1989

1990

1991

2005

2006

2007

Year

Lyme Disease Cases in Virginia, 1989 - 2009


Newly Identified Lyme Disease Cases by County

2003

2005

2007

2009

Confirmed and Probable cases per 100,000 population

0.1 to 4.9

5 to 9.9

10 to 24.9

25 to 49.9

50 to 99.9

100+


Lyme Disease Prevention

1. Avoid tickhabitats

2. Dress appropriately

3. Userepellents

4. Do tick checks

5. Remove ticks

6. Know the early signs of Lyme disease



2 dress appropriately
2. Dress Appropriately

  • Light colors

  • Tucked and buttoned

  • Prompt clothing removal

  • Launder




5 remove ticks promptly
5. Remove Ticks Promptly

Use pointed tweezers to grasp the tick by the head; do not squeeze its body!

Pull slowly and steadily until the tick releases; do not jerk or twist the tick.


6 learn the early signs of lyme
6. Learn the Early Signs of Lyme

  • Bull’s Eye rash

  • Fatigue

  • Fever

  • Joint or muscle aches

  • Headache

  • Swollen glands


Other tick borne diseases
Other Tick-borne Diseases

  • Ehrlichiosis/Anaplasmosis (tick must be attached 24 hrs)

  • Babesiosis (tick must be attached for 36 hrs)

  • Rocky Mountain Spotted Fever (tick must be attached only 4-6 hrs)


For more information
For More Information…

  • Virginia Department of Health

http://www.vdh.virginia.gov

http://www.vdh.virginia.gov/epidemiology/DEE/Vectorborne/TickBrochure.pdf

  • U.S. Centers for Disease Control and Prevention

http://www.cdc.gov/ncidod/dvbid/lyme/


Acknowledgements
Acknowledgements

  • David Gaines, Ph.D., Public Health Entomologist, Virginia Department of Health

  • Division of Environmental Epidemiology, VDH

  • U.S. Centers for Disease Control and Prevention

  • CDC Public Health Images Library

  • American Lyme Disease Foundation

  • Google Images

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    http://www.zoomerang.com/Survey/WEB22ALUM8JJD7


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