A Lyme disease doctor in Vermont is treating an illness whose case counts climbed steeply over the past two decades. The Vermont Department of Health reports that confirmed Lyme cases rose “from 50 or fewer per year before 2005 to more than 380 each year from 2011 onward.” A second tick illness climbed behind it. Since 2015, Vermont has had “the highest annual incidence of anaplasmosis in the U.S.,” per the same department. If your Lyme test was negative and you still feel sick, Vermont has a specific explanation worth checking. MyLymeDoc provides telehealth care for Lyme disease, co-infections and mold-related illness to Vermont residents.
Lyme disease is an infection caused by Borrelia burgdorferi bacteria, spread in Vermont by the bite of the blacklegged tick.
Blacklegged tick is Ixodes scapularis, often called the deer tick. The Vermont Department of Health reports it lives throughout Vermont, in woods and in fields with tall grass and brush.
Anaplasmosis is a bacterial infection caused by Anaplasma phagocytophilum, carried by the same blacklegged tick. It usually brings fever, chills, headache and muscle aches, and it rarely causes a rash.

You may, if a tick-borne illness was ruled out once and your body disagrees. “I tested negative but my symptoms match exactly” is one of the most common things patients tell us.
In Vermont, that sentence often has a specific explanation. The two illnesses that follow Lyme in frequency here, anaplasmosis and babesiosis, are separate infections that a Lyme-only test does not look for.
The Vermont Department of Health notes that most people diagnosed promptly and treated early “fully recover.” This page is for the people whose illness was missed, treated late, or left unexplained. The pattern of lingering illness is described on chronic Lyme disease symptoms.
Lyme disease in Vermont went from a minor problem to a major one in under a decade. A 2018 Vermont Department of Health climate report traced confirmed cases from “50 or fewer per year before 2005” to “more than 380 each year from 2011 onward.”
The rise moved north. The same report found that increases “have been observed first in the southern part of the state and later in the northern part of the state.” Incidence was still lower in the cooler northeast and at higher elevations, which the report expects warming winters to change.
The numbers have not leveled off. The Vermont Department of Health recorded its highest Lyme case count in 2025. By per capita rate, UVM’s Larner College of Medicine reports Vermont ranked second only to Rhode Island in 2022, at 202.8 cases per 100,000 people.
One caveat applies. The Vermont Department of Health explains that a 2022 change in how high-incidence states count cases “resulted in an expected increase in reported Lyme disease cases in 2022.” Part of that jump reflects counting. The long climb before it does not.
Anaplasmosis is Vermont’s second most common tick bite illness, and no state has had a higher annual rate since 2015, per the Vermont Department of Health. During 2008 to 2010, the department recorded “three or fewer cases” a year. The highest count on record came in 2025.
Anaplasmosis is easy to miss in Vermont for three reasons.
First, there is usually no rash. Only 9 percent of Vermonters with anaplasmosis report one, so the sign most people watch for is often absent.
Second, the timing differs from Lyme. The Vermont Department of Health notes that anaplasmosis risk “increases again in the fall.” A fever in October can still be a tick illness here.
Third, it can be serious. Thirty-six percent of Vermont cases are hospitalized, per the department.
Testing and treatment for this infection are covered on Anaplasma co-infections.
Vermont’s tick borne disease burden comes almost entirely from one tick. The Vermont Department of Health states that blacklegged ticks cause “99% of all tick bite illnesses” reported to it. The organism itself is profiled on deer tick.
| Illness | Caused by | What the Vermont Department of Health reports | When Vermont risk peaks |
|---|---|---|---|
| Lyme disease | Borrelia burgdorferi | Most common tick bite illness; highest case count on record in 2025 | June, July and August, with cases in every month |
| Anaplasmosis | Anaplasma phagocytophilum | Second most common; highest annual incidence in the U.S. since 2015 | Summer, rising again in fall |
| Babesiosis | Babesia microti (a parasite) | Third most common; two cases in 2011, 34 in 2019, a 1,602 percent rise in incidence | June through August |
| Hard tick relapsing fever | Borrelia miyamotoi | Fewer than 85 reported cases since 2016 | While blacklegged ticks are active |
| Powassan virus | Powassan virus | Three cases in Vermont residents since 1999 | While blacklegged ticks are active |
Babesiosis is an infection of the red blood cells caused by the Babesia microti parasite. It can cause fever, sweats, fatigue and anemia. The Vermont Department of Health reports that 70 percent of Vermont cases are in people 55 or older.
Vermont has two tick seasons, not one. The Vermont Department of Health reports that blacklegged tick activity peaks in May and June, when nymphs look for a host, and again in October and November, when adult females feed before winter.
Tick-related emergency room visits peak in spring and fall too, according to the department.
Nymph is the second life stage of the blacklegged tick. Vermont health officials describe nymphs as smaller than 2 millimeters and hard to see.
Infection rates matter as much as tick numbers. In the department’s 2018 to 2022 tick surveillance, Borrelia burgdorferi was found in 56.7 percent of adult blacklegged ticks and 24 percent of nymphs. Infected ticks were densest in southwestern Vermont.
Vermonters can report ticks they find to the state’s Vermont Tick Tracker. Help telling species apart is on types of ticks.

Early on, the Vermont Department of Health notes, the state’s tick bite illnesses can all feel like the flu.
Erythema migrans is the expanding rash that can appear at the site of a tick bite. Vermont health officials report it in about 70 percent of Lyme cases.
The Vermont Department of Health also notes that up to half of people diagnosed with Lyme do not recall a tick bite. “I don’t have the bull’s eye rash” is a reason to keep asking, not to stop.
A side-by-side look at how the co-infections differ is on co-infections symptom comparison.
A good workup in Vermont tests for more than Lyme. The Vermont Department of Health’s guidance for clinicians states that “using panels to test for multiple tickborne diseases is recommended since coinfections are possible.”
PCR (polymerase chain reaction) is a lab test that detects an organism’s genetic material directly, rather than the antibodies the body makes against it.
MyLymeDoc uses a four-phase approach, and the order is deliberate.
Herxheimer reaction is a temporary worsening of symptoms as the body processes die-off from treatment.
For a Vermont patient with anaplasmosis or babesiosis alongside Lyme, co-infection work belongs in phase four, once the body can handle it. Many clinics reverse this and go after the pathogen first. That is a common reason patients crash during treatment. The full approach is described on Lyme disease treatment.
MyLymeDoc has no office in Vermont. Vermont patients are seen by video.
What that means in practice. Chronic tick-borne illness is worked up through history, symptom pattern, exposure timeline and labs. Labs are drawn near you, and prescriptions go to your pharmacy.
What telehealth cannot do. A video visit cannot include a hands-on exam, and it is not the place for an acute fever after a tick bite. With 36 percent of Vermont anaplasmosis cases hospitalized, a new high fever needs in-person care first.
Vermont is one of eleven states where MyLymeDoc is licensed. The full list is on where we practice.
Patients arrive having seen 20 or more specialists on average. Most tell us some version of “my labs all come back normal but I feel terrible.”
The initial visit is $300 and runs long on purpose. Ongoing care is an all-inclusive membership between $400 and $1,100 per month, depending on how much support your case needs.
We have helped thousands of people in Colorado, Oregon, Wyoming, New Jersey, Pennsylvania, Texas, Wisconsin, New Hampshire, Alabama, South Dakota, and Vermont restore their health and quality of life by diagnosing and treating their Lyme Disease.
Yes. UVM’s Larner College of Medicine reports Vermont had the second-highest Lyme rate in the nation in 2022, and the state recorded its highest case count in 2025.
Vermont’s rate is the highest in the country. The Vermont Department of Health reports the highest annual anaplasmosis incidence in the U.S. since 2015, with cases most often reported from southern counties.
Yes. Only 9 percent of Vermonters with anaplasmosis report a rash, and the Lyme rash appears in about 70 percent of cases, per Vermont health officials.
Not on its own. Anaplasmosis and babesiosis, Vermont’s next two most common tick illnesses, need separate tests, and the Vermont Department of Health recommends panels.
No. The Vermont Department of Health reports a second tick peak in October and November, and anaplasmosis risk rises again in the fall.
No. Vermont patients are seen by telehealth. The Colorado office is not required.
Written and medically reviewed by Dr. Diane Mueller, ND, DAOM, LAc. Dr. Mueller is a naturopathic doctor and licensed acupuncturist, and the founder of MyLymeDoc, which has worked with more than 1,000 patients across the eleven states where MyLymeDoc is licensed. Read more about the team.
Last reviewed: September 24, 2026
Vermont residents can book an initial visit and have their full history and prior results reviewed properly.
MyLymeDoc is licensed in eleven states and treats patients in all of them by telehealth.
A full breakdown of how care is delivered state by state sits on the states we are licensed in page.
This page is for general educational purposes and is not medical advice. It does not create a doctor and patient relationship, and it is not a substitute for diagnosis or treatment from your own clinician. Talk with a qualified healthcare provider before starting, stopping, or changing any treatment. If you are experiencing a medical emergency, call 911 or go to the nearest emergency room.
We have helped thousands of people in Colorado, Oregon, Wyoming, New Jersey, Pennsylvania, Texas, Wisconsin, New Hampshire, Alabama, South Dakota, and Vermont restore their health and quality of life by diagnosing and treating their Lyme Disease.
We have helped thousands of
people restore their health
and quality of life by diagnosing
and treating their Lyme Disease.
“Dr. Mueller’s approach to medicine is refreshing! There is only so much you can do with western medicine and in my life I was needing a new approach. By addressing the whole body, nutritional diet factors, environmental factors, blood work, and incorporating ideas I had not previously known, I was able to break through with my conditions. I am not only experiencing less pain in my life, but through the process of healing guided by Dr. Diane Mueller, I am now happy to say I have more consciousness surrounding how I eat, what to eat and when things are appropriate. Living by example Dr. Mueller has a vibrancy that makes you want to learn and know more about your body and overall health. I highly recommend her to anyone looking for new answers, a new approach to health, or in need of freedom from pain and limitations.”
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