Amblyomma americanum
| lone star tick | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Arachnida |
| Subclass: | Acari |
| Order: | Ixodida |
| Family: | Ixodidae |
| Genus: | Amblyomma |
| Species: | A. americanum |
| Binomial name | |
| Amblyomma americanum (Linnaeus, 1758) [1] |
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Amblyomma americanum, or lone star tick, is a species of tick in the genus Amblyomma.
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[edit] Distribution
It is very widespread in the United States ranging from Texas to Iowa in the Midwest and east to the coast where it can be found as far north as Maine.[2] It is most common in wooded areas, particularly in forests with thick underbrush.
[edit] Odd Red Meat Allergy
According to some articles, this tick may be to blame for causing a unique red meat allergy in people it has bitten. The regions that the tick inhabits coincides with the regions of the US and Australia that appear to be related to the disorder. Unlike most allergic reactions, this beef allergy reaction occurs about 4 hours or more after eating red meat, not immediately after ingestion like most meat allergies. http://allergicliving.com/index.php/2010/07/02/food-allergy-beef-emerges-as-issue/
[edit] Vector
Like all ticks, it can be a vector of diseases including human monocytotropic ehrlichiosis (Ehrlichia chaffeensis), canine and human granulocytic ehrlichiosis (Ehrlichia ewingii), tularemia (Francisella tularensis), and Southern tick-associated rash illness (STARI, possibly caused by the spirochete Borrelia lonestari).[3] STARI exhibits a rash similar to that caused by Lyme disease but is generally considered to be less severe.
Though the bacteria responsible for Lyme disease, Borrelia burgdorferi, has occasionally been isolated from lone star ticks, numerous vector competency tests have demonstrated that this tick is extremely unlikely to be capable of transmitting Lyme disease. There is evidence that the A. americanum saliva inactivates Borrelia burgdorferi more quickly than the saliva of Ixodes scapularis.[4]
[edit] References
- ^ Amblyomma americanum at the Encyclopedia of Life
- ^ James E. Childs & Christopher D. Paddock (2003). "The ascendancy of Amblyomma americanum as a vector of pathogens affecting humans in the United States". Annual Review of Entomology 48 (1): 307–337. doi:10.1146/annurev.ento.48.091801.112728. PMID 12414740.
- ^ Edwin J. Masters, Chelsea N. Grigery & Reid W. Masters (June 2008). "STARI, or Masters disease: lone star tick-vectored Lyme-like illness". Infectious Disease Clinics of North America 22 (2): 361–376, viii. doi:10.1016/j.idc.2007.12.010. PMID 18452807.
- ^ K. E. Ledin, N. S. Zeidner, J. M. C. Ribeiro, B. J. Biggerstaff, M. C. Dolan, G. Dietrich, L. VredEvoe & J. Piesman (March 2005). "Borreliacidal activity of saliva of the tick Amblyomma americanum". Medical and Veterinary Entomology 19 (1): 90–95. doi:10.1111/j.0269-283X.2005.00546.x. PMID 15752182. http://www.blackwell-synergy.com/openurl?genre=article&sid=nlm:pubmed&issn=0269-283X&date=2005&volume=19&issue=1&spage=90.
[edit] External links
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