List of diseases spread by deer tick grows, including malaria-like problems and potentially fatal encephalitis

Science Daily: Researchers from the Yale School of Public Health reported that from 2000 to 2008, cases of babesiosis -- which invades red blood cells and is carried by the same tick that causes Lyme disease -- expanded from 30 to 85 towns in Connecticut. Cases of the disease in Connecticut, where it was first reported in 1991, also have risen from 3 to about 100 cases per year.