Amblyomma


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Amblyomma

 [am″ble-om´ah]
a genus of ticks, comprising approximately 100 species, which are vectors of various disease-producing organisms. A. america´num is the Lone Star tick, a species widely distributed from the southern United States to South America and is a vector of rocky mountain spotted fever. A. cajennen´se is found in many parts of the Americas and is a vector of São Paulo fever, a form of typhus. A. macula´tum is the Gulf Coast tick, which mainly infests cattle and is widely distributed in the Americas; its bite causes painful sores that serve as sites of screwworm infections and secondary bacterial and fungal infections.

Amblyomma

(am'blē-om'ă),
A genus of ornate, hard ticks (family Ixodidae) with eyes, festoons, and, in the males, deeply imbedded ventral plates near the festoons.
[ambly- + G. omma, eye, vision]

Amblyomma

/Am·bly·om·ma/ (am″ble-om´ah) a genus of hard-bodied ticks with about 100 species. A. america´num is the Lone Star tick, a species common from the southern United States to South America that is a vector of Rocky Mountain spotted fever. A. cajennen´se is found in many parts of the Americas and is a vector of São Paulo fever, a form of typhus.

Am·bly·om·ma

(am'blē-o'mă)
A genus of hard ticks characterized by eyes, festoons, and deeply imbedded ventral plates near these festoons.
[ambly- + G. omma, eye, vision]

Amblyomma

a genus of ticks of the family Ixodidae.

Amblyomma americanum
a three-host tick which causes painful bites and tick paralysis and transmits Q fever, tularemia and Rocky Mountain spotted fever of humans. Called also the lone star tick.
Amblyomma cajennense
a three-host tick that transmits spotted fever of human and leptospirosis due to L. pomona. Called also cayenne tick.
Amblyomma hebraeum
a three-host tick that transmits Ehrlichia ruminantium, the cause of heartwater. It also causes severe bite wounds. Called also bont tick.
Amblyomma maculatum
a three-host tick which causes paralysis but does not transmit disease. Called also Gulf coast tick.
Amblyomma pomposum
a three-host tick, a vector for Ehrlichia ruminantium, the cause of heartwater.
Amblyomma variegatum
a three-host tick which transmits Ehrlichia ruminantium, the cause of heartwater, Coxiella burnetii (Q fever) and Nairobi sheep disease. Called also variegated or tropical bont tick.
References in periodicals archive ?
Goddard (1997), "Seasonal Activity and Relative Abundance of Amblyomma americanum in Mississippi," Journal of Medical Entomology, 33(1):128-131.
An example of such a "three-host" tick is the lone star tick, Amblyomma americanum (Figure 2).
rickettsii were isolated through the inoculation of patient blood or of Amblyomma cajennense sensu lato (s.
Among the PCR-positive ticks two were Amblyomma americanum, two were Dermacentor variabilis, while 17 (81%) were Ixodes scapularis.
The tick was photographed (Figure) and identified, by morphologic features, as an Amblyomma sp.
chaffeensis, bacterial DNA has been amplified from ticks (Dermacentor nitens and Amblyomma cajennense) collected from horses in Panama (8).
We collected 2,549 ticks from the field: 2,192 Amblyomma americanum (1 larva, 1,917 nymphs, 274 adults), 306 I.
Rickettsia parkeri in Amblyomma maculatum ticks, North Carolina, USA, 2009-2010.
Using morphologic criteria, we identified all 16 ticks collected from the sloth as Amblyomma geayi (Figure, panel B).
variabilis are the main vectors in the United States, and ticks of the Amblyomma cajennense complex are the most common vectors in Central and South America (3,4).
in the vector tick, Amblyomma geoemydae, and its association with Lyme disease and relapsing fever Borrelia spp.