Yes, you can get Lyme disease more than once
Reinfection with Lyme disease is possible. Your body does not build permanent immunity after one infection, so you can contract the disease again if you are bitten by another infected tick. This is different from some other infections where one bout leaves you protected for life.
The risk of reinfection depends partly on where you live and how often you spend time in tick habitats. Someone who hikes regularly in a Lyme-endemic area faces higher odds of being bitten again than someone who rarely ventures into wooded or grassy spaces. Each new tick bite carries its own risk of infection.
Key Takeaways
- Lyme disease does not confer lifelong immunity, so reinfection can happen if you are bitten by another infected tick.
- Reinfection is more common in people who spend frequent time outdoors in tick-prone areas, particularly in the Northeast and upper Midwest.
- Symptoms of a second infection may differ from your first case, making it harder to recognize as Lyme disease.
- The same prevention methods—tick checks, protective clothing, and insect repellent—reduce your risk of reinfection.
How immunity works after Lyme disease
When you recover from Lyme disease, your immune system produces antibodies against the bacterium Borrelia burgdorferi. These antibodies can be detected in blood tests for months or years after treatment. However, the presence of antibodies does not mean you cannot be infected again.
Researchers do not fully understand why Lyme disease does not produce lasting immunity the way measles or chickenpox do. One theory is that the bacterium has ways of evading or suppressing the immune response, but this remains an active area of study. What is clear from clinical observation is that people do get Lyme disease a second time.
If you have had Lyme disease before, your doctor should know this when you report new symptoms. Prior infection can affect how your doctor interprets test results, since antibodies from an old infection can still show up on certain tests.
Recognizing a second infection
The early signs of reinfection are the same as a first infection: a rash (often the characteristic bull's-eye or erythema migrans), fever, chills, fatigue, and joint or muscle aches. The rash typically appears three to thirty days after the tick bite. However, not everyone develops a rash, and some people have milder symptoms the second time around.
A second infection might feel different because you know what to expect. You may catch it sooner and seek treatment faster, which can prevent progression to later-stage symptoms like arthritis or neurological problems. Conversely, if your first infection was mild or went undiagnosed, you might not recognize the second one as Lyme disease and delay treatment.
If you develop symptoms consistent with Lyme disease and you have a history of prior infection, tell your healthcare provider about the previous case. This helps them decide which tests to order and how to interpret the results.
Testing challenges with reinfection
Standard Lyme disease tests look for antibodies in your blood. If you had Lyme disease before, antibodies from that infection may still be present, even years later. This can make it difficult to determine whether a positive test result reflects a new infection or lingering antibodies from the past.
A two-tier testing approach—starting with an ELISA test and confirming with a Western blot—is the standard method. If you have a history of Lyme disease, your doctor may order additional tests or rely more heavily on clinical symptoms and the presence of a rash to confirm reinfection, rather than relying on antibody tests alone.
Some laboratories offer tests that measure different types of antibodies (IgM versus IgG) to try to distinguish new infection from old, but these tests have limitations. Discuss your testing options with your healthcare provider, especially if you have been infected before.
Who is at higher risk for reinfection
Your risk of reinfection depends on exposure. People who spend significant time outdoors in tick-endemic areas—particularly the Northeast, upper Midwest, and parts of the Pacific Coast—face repeated exposure to infected ticks. Occupations like forestry, landscaping, or park maintenance carry higher risk, as do frequent hiking, camping, or yard work in these regions.
Geographic location matters most. If you live in an area where Lyme disease is rare, your risk of reinfection is low even if you have had it before. If you live in or frequently visit a high-incidence area, your risk is higher with each season.
Age and outdoor habits also play a role. Children who play outdoors frequently and adults who work or recreate in natural settings face more tick bites over time and therefore more chances for reinfection.
Prevention after a prior infection
The same prevention strategies that reduce your first infection risk also reduce reinfection risk. Tick checks after time outdoors are essential—inspect your skin, scalp, and clothing, and remove any ticks promptly. Wear long sleeves and long pants when in wooded or grassy areas, and tuck pants into socks if you are in high-risk habitat.
Insect repellents containing DEET (on skin) or permethrin (on clothing) reduce tick attachment. Permethrin-treated clothing is particularly effective and remains protective through multiple washings. Avoid walking through tall grass and brush, and stay on cleared trails when possible.
If you remove a tick, use fine-tipped tweezers to grasp it close to the skin and pull straight out. Do not twist or crush it. Save the tick in a sealed bag or container if you want it tested for pathogens, though testing is not always necessary if you begin treatment promptly after a bite.
Treatment for reinfection
Reinfection is treated the same way as a first infection. Early-stage Lyme disease is typically treated with oral antibiotics—usually doxycycline for adults and children over eight years old, or amoxicillin or cefuroxime for younger children and pregnant women. Treatment usually lasts two to three weeks.
If the infection progresses to later stages (affecting joints, the nervous system, or the heart), treatment may require intravenous antibiotics or longer courses of oral medication. Starting treatment early, as soon as you recognize symptoms or have a confirmed diagnosis, gives the best outcome regardless of whether this is your first or second infection.
Do not assume that because you had Lyme disease before, you are immune or that a second infection will be milder. Seek medical attention promptly if you develop symptoms, especially if you have a rash or you know you were bitten by a tick.
Frequently Asked Questions
Can you get Lyme disease twice in the same year?
Yes, though it is uncommon. You could theoretically be bitten by two different infected ticks in the same season. However, most people who have had Lyme disease once do not get it again within months unless they have very high exposure to ticks.
If I had Lyme disease, will my blood test always show I had it?
Antibodies can persist for years after treatment, so yes, a standard Lyme test may remain positive long after you have recovered. This is why your doctor needs to know your history—a positive test alone cannot tell whether you have a new infection or old antibodies.
Does treatment for Lyme disease give you immunity?
No. Successful treatment cures the infection but does not create immunity. You can be infected again if bitten by another tick carrying the bacterium. Prevention through tick avoidance and removal remains your best protection.
Is reinfection more serious than a first infection?
Not necessarily. Severity depends on how quickly you recognize and treat the infection, not on whether it is your first or second time. Early treatment, regardless of prior history, prevents progression to later-stage disease.
Should I get vaccinated against Lyme disease to prevent reinfection?
A Lyme vaccine was available in the United States but was withdrawn from the market in 2002. No Lyme vaccine is currently available in the U.S., though research into new vaccines continues. Prevention through tick checks and protective measures remains the main strategy.