Nonpathogenic rickettsias related to the spotted fever group isolated from ticks, Dermacentor variabilis
and Dermacentor andersoni from eastern Montana.
Only collected adults of Dermacentor variabilis
were used in this study.
En 2012, en fincas de Missouri, se recolectaron 56.428 garrapatas Amblyomma americanum y Dermacentor variabilis
. Mediante el uso de RT-PCR (reaccion en cadena de la polimerasa con retrotranscriptasa inversa), varios grupos de ninfas de A.
The prevention of attachment and the detachment effects of a novel combination of fipronil, amitraz and (S)-methoprene for Rhipicephalus sanguineus and Dermacentor variabilis
Five species of ectoparasites were collected during this study, including 190 American dog ticks (Dermacentor variabilis
Say, Acari: Ixodidae), 64 fleas [63 Pulex simulans Baker, 1 Eulioplopsyllus glacialis affinis (Baker), Siphonaptera, Pulicidae], 12 fur mites, (Didelphilichus serrifer Fain, Acari: Atopomelidae) and one chewing louse [Neotricliodectes mephiditis (Packard), Phthiraptera, Trichodectidae] (Table 1).
US Southeast: Dermacentor variabilis
(American dog tick) Other gravid female ixodid ticks may also rarely transmit TP in the US.
Otra especie de garrapata que ha sido identificada en caninos en Venezuela es Dermacentor variabilis
, la cual tambien es transmisora de patogenos entre perros y el hombre .
This vast distribution is a result of the ticks that serve as vector and reservoir of the disease: Dermacentor variabilis
(commonly known as the American dog tick) in the eastern United States and Dermacentor andersoni (commonly known as the Rocky Mountain wood tick) in the western United States.
andersoni) and the American dog tick (Dermacentor variabilis
); however, 43 tick species have been implicated in human disease around the world (1).
Three species of ticks, including Amblyomma americanum, Dermacentor variabilis
, and Ixodes scapularis were collected from animals as well as from public areas by flagging vegetation in 25 different counties in order to determine areas of greatest risk.
In the eastern United States, the usual vector of Rocky Mountain spotted fever (RMSF) is the American dog tick, Dermacentor variabilis
, while in the West the Rocky Mountain wood tick, Dermacentor andersoni, predominates.
The American dog tick or wood tick, Dermacentor variabilis
(Say) is an eastern species, known in Canada from Nova Scotia to south central Saskatchewan.