In early July, 1863, troops from General Robert E. Leeâs Army of Northern Virginia (the Confederates) met up with a patrol of Union cavalry on the outskirts of Gettysburg, Pennsylvania. Over the next three days, this encounter grew into a turning point of the Civil War.
They are arachnids, not insects. There are hundreds of different kinds of ticks in the world. Many of them carry bacteria, viruses or other pathogens that cause disease in humans and/or animals. In the midwestern and eastern United States, Ixodes scapularis or deer tick is the primary vector of Lyme disease. On the West Coast, the spirochete is carried by Ixodes pacificus or western black-legged tick.
Ixodes pacificus; western black-legged tick (feeds on dusky-footed wood rat and bites humans; principal vector for Lyme disease in western United States especially northern California).xodes persulcatus (bites humans; a vector for Lyme disease spirochete). Ixodes dentatus; Ixodes spinipalpis (usually does not bite humans; transmits Lyme disease spirochete to cottontail rabbits and wood rats).