Lyme disease, transmitted by ticks, has emerged relatively recently as a scientific concern. Initially identified in the late 1970s and early 1980s, this tick-borne illness can result in symptoms such as rash, fever, muscle and joint pain, neurological issues, and face paralysis. Interestingly, only two of the nearly 50 tick species in the United States spread this disease.
Initially, Lyme disease cases were mostly confined to specific areas including the Great Lakes and the northeastern United States. However, factors such as changing temperatures, animal migration, and altered land use have led to an expansion of tick territories. This has increased the potential risk of Lyme disease even in places where it was previously uncommon.
With the changing distribution of ticks, it’s essential to consider the risk of Lyme disease in your area. This growing concern underscores the importance of awareness and precautions to minimize exposure to ticks.
If you’re curious about pests and parasites, you can reach out with questions to [email protected]. Supporting public media like NPR+ offers additional perks such as bonus episodes, early access, and curated playlists without ads. For more information, visit plus.npr.org and tune into Short Wave on Spotify and Apple Podcasts.
This episode was produced by Rachel Carlson and edited by Rebecca Ramirez. Fact-checking was conducted by Tyler Jones, with audio engineering by Annlie Huang.

The Intersection of IVF and Reproductive Justice Post-Dobbs
Hospitals Battle Rising Temperatures Amid Heat Waves
Swim Programs Boost Safety for Children with Autism
Breakthrough in Bacterial Drug Synthesis for Cancer Treatment
Intense Heat Dome Threatens July Fourth Records Across the U.S.
Representative Thomas Kean Jr. Becomes Open About His Depression