Babesiosis Tick Paralysis Tick-borne Relapsing Fever Tularemia Rocky Mountain Spotted Fever Colorado Tick Fever New tick species continue to be classified, and new diseases continue to emerge.
Most researchers suspect that there are even more diseases that are still unidentified.
The exponential increase in deer numbers throughout the United States from an estimated 500,000 in 1900 to 30,000,000 today has greatly increased the number of deer ticks throughout the country. Although the tick species which carry this disease have been eradicated from the United States, they are continually being reintroduced into Texas across the Rio Grande from Mexico.