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8680

PHIL Image 8680

ID#:8680
Description:This photograph depicted ventral view of an engorged female "lone star tick" Amblyomma americanum. An Ixodes or "hard" tick, A. americanum is found through the southeast and south-central states, and has been shown to transmit the spirochete, Borrelia lonestari, the pathogen responsible for causing a Lyme disease-like rash known as "Southern tick-associated rash illness" (STARI). Representatives from all three of its life stages aggressively bite people in the southern U.S.

Epidemiology and Risk:

In 2001, a patient with evidence of B. lonestari infection was reported in the medical literature. This patient had exposure to ticks in Maryland and North Carolina, and developed a rash indistinguishable from erythema migrans after an A. americanum tick bite. DNA analysis indicated the presence of B. lonestari in a skin biopsy taken at the leading edge of the rash, and in the tick removed by the physician. Serologic testing for Lyme disease was negative. The patient was treated with an oral antibiotic and returned to normal health.

Lone star ticks can be found from central Texas and Oklahoma eastward across the southern states, and along the Atlantic coast as far north as Maine. Research indicates that live spirochetes are observed in only 1-3% of specimens. Note the anal orifice located in the center of the ventral abdominal surface.

High Resolution:Right click here and select "Save Target As..." for hi-resolution image (14.48 MB)
Content Providers(s):CDC/ Dr. Amanda Loftis, Dr. William Nicholson, Dr. Will Reeves, Dr. Chris Paddock
Creation Date:2006
Photo Credit:James Gathany
Links:
  • CDC - Nat. Center for Infection Diseases; Div. of Vector-Borne Infectious Diseases; Lyme Disease Prevention and Control
  • CDC - Nat. Center for Infection Diseases; Div. of Vector-Borne Infectious Diseases; "Southern Tick-Associated Rash Illness"
    Categories:
    CDC Organization

    MeSH
    tree picture Biological Sciences
    tree picture tree picture Environment and Public Health
    tree picturetree picture tree picture Public Health
    tree picturetree picturetree picture tree picture Disease Transmission
    tree picturetree picturetree picturetree picture tree picture Disease Vectors
    tree picturetree picturetree picturetree picturetree picture tree picture Arthropod Vectors
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Arachnid Vectors
    tree picturetree picturetree picture tree picture Public Health Practice
    tree picturetree picturetree picturetree picture tree picture Communicable Disease Control
    tree picturetree picturetree picturetree picturetree picture tree picture Pest Control
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Tick Control
    tree picture Diseases
    tree picture tree picture Bacterial Infections and Mycoses
    tree picturetree picture tree picture Bacterial Infections
    tree picturetree picturetree picture tree picture Gram-Negative Bacterial Infections
    tree picturetree picturetree picturetree picture tree picture Tick-Borne Diseases
    tree picturetree picturetree picturetree picturetree picture tree picture Lyme Disease
    tree picture tree picture Parasitic Diseases
    tree picturetree picture tree picture Ectoparasitic Infestations
    tree picturetree picturetree picture tree picture Tick Infestations
    tree picturetree picture tree picture Protozoan Infections
    tree picturetree picturetree picture tree picture Tick-Borne Diseases
    tree picture tree picture Virus Diseases
    tree picturetree picture tree picture Arbovirus Infections
    tree picturetree picturetree picture tree picture Tick-Borne Diseases
    tree picture Organisms
    tree picture tree picture Animals
    tree picturetree picture tree picture Invertebrates
    tree picturetree picturetree picture tree picture Arthropods
    tree picturetree picturetree picturetree picture tree picture Arachnida
    tree picturetree picturetree picturetree picturetree picture tree picture Acari
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Ticks
    tree picturetree picturetree picturetree picturetree picturetree picturetree picture tree picture Ixodidae
    tree picturetree picturetree picturetree picturetree picturetree picturetree picturetree picture tree picture Ixodes
    tree picture tree picture Bacteria
    tree picturetree picture tree picture Gram-Negative Bacteria
    tree picturetree picturetree picture tree picture Gram-Negative Anaerobic Bacteria
    tree picturetree picturetree picturetree picture tree picture Gram-Negative Anaerobic Straight, Curved, and Helical Rods
    tree picturetree picturetree picturetree picturetree picture tree picture Spirochaetaceae
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Borrelia
    Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.
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    This page last reviewed: Mar. 18 2005
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