Each Simparica treatment kills fleas (100 percent within 24 hours) and certain species of ticks (almost 97 percent of Lone Star tick, Gulf Coast tick, American dog tick, black-legged tick
, and brown dog tick) for one month.
Many species, including the black-legged tick
mainly responsible for Lyme disease, "hunt" by crawling onto the edges of grass stems or leaves on the ground.
Deer, one of the major hosts for black-legged ticks
, were overhunted and dwindled to a few small, scattered populations.
In the eastern United States, the black-legged tick
is mainly responsible for transmitting the disease.
On the West Coast, the bacterium is generally carried by a similar parasite, the western black-legged tick
disease and is transmitted by the black-legged tick
In the United States, this tick is found mainly in three areas: the coastal Northeast and the upper Midwest where the carrier is the deer tick, and coastal California where the carrier is the western black-legged tick
On the Pacific Coast, the bacteria are transmitted to humans by the western black-legged tick
It is caused by a corkscrew-shaped bacteria called Borrelia burgdor-feri known to be passed to humans only by the deer tick (also called the black-legged tick
) and the related Western black-legged tick
and by the black-legged tick
on the Pacific coast and in southeastern states.
Human antibodies, having encountered the protein in a vaccination, respond immediately when the person is subsequently bitten by a Lyme-carrying deer tick or western black-legged tick
The deer or black-legged tick
(Ixodes scapularis) generally transmits the disease in the East and upper Midwest, and the western black-legged tick
(Ixodes pacificus) in Pacific coastal states.
The bacterium responsible is transmitted by the bite of the black-legged tick
, Ixodes scapularis, also known as the deer tick," says entomologist John F.
In fact, the Lyme disease spirochete has been isolated from virtually all blood-sucking insects: deer tick, brown dog tick, lone star tick, American dog tick (also mentioned by Potter), black-legged tick
, Western black-legged tick
, dog flea, cat flea, rodent flea, bot fly, horse fly, deer fly, and at least 15 species of mosquito.
The Lyme disease spirochete is transmitted by the deer tick (carried by deer and mice), except in California, where the culprit is the closely related black-legged tick
(also carried by wood rats).