As Lyme disease is passed onto humans through ticks, there are large regional differences in Lyme disease incidence rates depending on the pervasiveness of ticks. States in the northeast of the United States experience the highest incidence rates of Lyme disease because these areas are host to the largest number of infected ticks. In 2017, the states with the highest incidence rates of Lyme disease were Maine, Vermont, and Pennsylvania. Similarly, there are seasonal differences in Lyme disease cases. Unsurprisingly, the months around when ticks are most active are the ones in which the highest number of new Lyme disease cases occur, with June and July accounting for the largest portion of new cases.
In 2017, it was found that only 76 percent of those aged 18 to 34 years knew that Lyme disease was transmitted through the bite of a tick and 22 percent thought the disease could be transmitted through infected blood. Preventing Lyme disease rests on avoiding tick bites, with the most common preventative measures including wearing clothing to cover ankles, using insect repellant, and avoiding areas with deer. Lyme disease funding from the National Institutes for Health (NIH) has increased in recent years and is expected to reach 31 million dollars in 2019, but will then drop to 27 million dollars in 2020.