Understanding Tick-Borne Diseases
Understanding Tick-Borne Diseases
Ticks are tiny, blood-sucking parasites that can spread more than 15 recognized diseases in the United States¹. They are most active in the warmer months so it is important to take precautions while you enjoy time outdoors. Understanding tick-borne illnesses, their symptoms, and the importance of testing can help you get the care you need.
How Many Ticks Carry Diseases in Pennsylvania?
There is a 1 in 2 chance that adult black-legged ticks in Pennsylvania may be carrying the Lyme disease bacteria, while 1 in 4 nymphs (young black-legged ticks) are infected. Ticks can carry multiple diseases at once ².
If you are bitten by a tick, there is a good chance it could be carrying a disease.
Preventing tick bites is a necessity.
The best way to avoid a tick-borne disease is to use an approved insect repellant, perform regular tick checks, and prevent your pets from bringing ticks inside the home.
What Are the Common Tick-Borne Diseases in Pennsylvania?
Some of the most common tick-borne diseases in Pennsylvania include:
What Symptoms Should You Watch For?
If you received a tick bite, be on the lookout for these symptoms:
- Fever or chills
- Fatigue, feeling very tired or weak
- Headaches or dizziness
- Muscle or joint aches
- Rash (especially a bullseye rash for Lyme disease)
- Flu-like symptoms
If you experience any of these symptoms, visit your healthcare provider for an evaluation.
How Can You Get Tested for Tick-Borne Diseases?
HNL Lab Medicine scientists are experts in diagnosing tick-borne diseases. You can bring your doctor’s lab order to any of our convenient Patient Service Centers. No appointment required!
In addition to tests through your healthcare provider, you can also order a Lyme disease test directly from HNL Lab Tests Direct without needing a doctor’s order. This option makes it easier to get tested if you suspect Lyme disease.
Don’t let ticks put a damper on your outdoor adventures! With a few simple precautions and timely testing when needed, you can stay safe and enjoy the sunshine worry-free.
REFERENCES
¹ Centers for Disease Control and Prevention. (2024, May 15). About Ticks and Tickborne Disease. U.S. Department of Health and Human Services. About Ticks and Tickborne Disease
² Pennsylvania Department of Health. (2026, April 22). Lyme Disease and Other Tickborne Diseases in Pennsylvania (PA-HAN 821). Commonwealth of Pennsylvania https://www.hhs.gov/ash/advisory-committees/tickbornedisease/index.html
updated: 7/72026