A heatwave is caused by a system of higher atmospheric pressure. In a high pressure system, air from upper levels of the atmosphere descends and rotates outward. As it comes down, it becomes compressed, which increases its temperature and dries it out.
Lyme disease: An inflammatory disease that is caused by the bacterium Borrelia burgdorferi, which is transmitted to humans by the deer tick. The first sign of Lyme disease is a red, circular, expanding rash, usually radiating from the tick bite, followed by flu-like symptoms and joint pains.
Lyme Disease. Lyme disease is an inflammatory disease that rapidly progresses. Transmitted by the bite of an infected deer tick, Lyme disease is most common in the Northeast section of the United States. However, the disease has also appeared in the upper East coast, in the upper Midwest, and along the coasts of northern California and Oregon.