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.
Lyme disease is caused by Borrelia burgdorferi bacteria. Infected ticks spread the bacteria by biting people or animals. Two types of ticks carry the Lyme disease bacteria in the U.S. They are: 1  Deer ticks. 2  They spread the disease in the Northeast and Midwest. 3  Western black-legged ticks.4  They spread the disease along the Pacific coast, mostly in northern California and Oregon.wo types of ticks carry the Lyme disease bacteria in the U.S. They are: 1  Deer ticks. 2  They spread the disease in the Northeast and Midwest. 3  Western black-legged ticks.