Tick Bites: Safe Removal and the Signs of Infection to Watch For

Every May the same video resurfaces: someone dabs peppermint oil on a tick, the camera zooms in, and the tick obligingly backs out. Millions of views, thousands of grateful comments, and, as of May 2025, a fresh round of tick bites being managed with essential oils, dish soap and lit matches instead of tweezers. Add a late-stage human Lyme vaccine trial that has kept the topic in the news, and a wave of stories about a tick-triggered red-meat allergy, and it is easy to see why searches for tick bites spike this time of year.

The surge in curiosity is good. The folklore is not. The actual science of what happens between a tick’s mouthparts and your bloodstream is well mapped, and it points to a short list of actions that matter and a longer list that do not. This piece walks through both, grades the evidence as it goes, and is honest about where doctors still disagree.

What changed recently with tick bites and Lyme disease

Three developments explain the current attention. The first is statistical. In 2022 the CDC and state health departments simplified how Lyme disease is counted in high-incidence states, relying more on laboratory results and less on clinician case reports. Reported cases jumped to more than 62,000 that year, up from roughly 35,000 in earlier years. The CDC is clear that this reflects a change in surveillance rather than a sudden doubling of infections, and it continues to estimate that around 476,000 people are diagnosed and treated for Lyme disease in the United States each year, a figure based on insurance claims data.

The second is an allergy few people had heard of five years ago. In July 2023 the CDC published two reports on alpha-gal syndrome, a delayed allergic reaction to a sugar molecule found in mammalian meat that can develop after bites from the lone star tick. More than 110,000 suspected cases were identified between 2010 and 2022, and because testing is patchy the true number may reach 450,000. Nearly half of surveyed clinicians had never heard of the condition.

The third is a vaccine that does not yet exist for the public. No Lyme vaccine has been licensed for humans since an earlier product was withdrawn from the market in 2002. An investigational vaccine targeting six strains of the Lyme bacterium entered a Phase 3 trial in 2022 across the United States and Europe, with results anticipated in the coming seasons. It remains an experimental product: not approved, not available, and not something to seek out. Dogs, meanwhile, have had licensed Lyme vaccines for decades, which is where some of the online confusion begins.

What does a tick bite look like?

Usually like nothing at all. Tick saliva contains compounds that numb the skin and dampen local inflammation, which is why a tick can feed for days without being noticed. When a reaction does appear, it is typically a small red bump, similar to a mosquito bite, that fades within a day or two. That bump is a local irritation, not an infection.

Size is the real challenge. An adult female blacklegged tick is about the size of a sesame seed. The nymph, the immature stage that causes most Lyme infections in people, is closer to a poppy seed and is active from late spring through summer. Nymphs are small enough to sit unnoticed in the hairline, behind a knee or inside the navel. The CDC’s checklist of favorite hiding spots reads like a body map: under the arms, in and around the ears, inside the belly button, behind the knees, between the legs, around the waist and in the hair.

Not every small bite is a tick. Chiggers, fleas and bedbugs leave clusters or lines of itchy bumps; ticks almost always bite alone and stay attached. If you find an embedded tick, the body will be visible above the skin, often swollen and gray if it has been feeding for a while.

The appearance that matters medically is different from the bite itself. A rash that appears days later and keeps growing is a sign of possible infection, and the next sections cover exactly what that looks like. For now, the practical point is simple: after time outdoors in tick habitat, assume you will not feel a bite and look for one instead.

Tick removal: the method that evidence supports

The CDC, NHS and Mayo Clinic describe the same technique, and the details are not decorative. Each one prevents a specific problem.

• Use fine-tipped tweezers, or a purpose-made tick removal tool if you have one. Blunt household tweezers crush the body.
• Grasp the tick as close to the skin surface as possible, around the head and mouthparts rather than the swollen abdomen.
• Pull upward with steady, even pressure. Do not twist, jerk or wiggle; that is how mouthparts break off.
• If mouthparts remain, try once to lift them with clean tweezers. If they will not come out easily, leave them. The skin will push them out as it heals, much like a splinter.
• Clean the bite and your hands with rubbing alcohol or soap and water.
• Dispose of a live tick by putting it in alcohol, sealing it in a bag or tape, or flushing it. Never crush it with your fingers.

Two mechanisms explain why squeezing is the thing to avoid. Compressing a tick’s body can push gut contents and saliva back into the wound, and the saliva is where disease-causing organisms travel. Irritating the tick with heat or chemicals has the same effect: a stressed tick may regurgitate before it detaches. Laboratory studies in animals showed that any delay in removal, whatever the method, increased transmission risk, which is why speed beats technique when the two conflict.

Finally, make a note of the date and, if possible, photograph the tick before disposing of it. If symptoms appear weeks later, that information helps a clinician far more than the tick itself would.

How do you treat a tick bite once the tick is out?

For the great majority of bites, treatment is nothing more than cleaning and watching. Wash the area, apply a cold compress if it is sore, and resist the urge to pick at the spot. An over-the-counter hydrocortisone cream or antihistamine can calm itching, but check with a pharmacist or clinician if you take other medicines or are treating a child.

Then begins what clinicians call the observation window. Lyme disease and most other tick-borne illnesses declare themselves within 3–30 days, so a calendar reminder a month after the bite is a genuinely useful tool. The signs to log are an expanding rash at or near the bite site, fever, chills, headache, fatigue, muscle or joint aches, and swollen lymph nodes. A small red patch that stays under about an inch and fades in 48 hours is a local reaction and does not need a visit.

Many people ask whether every tick bite needs antibiotics. It does not, and the reasons are concrete. Only certain species carry the Lyme bacterium, only a fraction of those ticks are infected (prevalence varies by region, from a few percent to more than half of adult blacklegged ticks in parts of the Northeast and Upper Midwest), and transmission requires prolonged attachment. In specific high-risk situations, which the next sections describe, a clinician may offer preventive antibiotics, and that decision belongs to them.

What a tick bite does not need is a tourniquet, a cut, a suction device, or an internet-sourced course of antibiotics. Those add harm without subtracting risk. If the bite becomes increasingly red, warm, painful or begins to drain pus, that pattern suggests a bacterial skin infection from the break in the skin rather than a tick-borne disease, and it also merits a medical look.

How long does a tick need to be attached to transmit disease?

For Lyme disease, longer than most people fear. Transmission of Borrelia burgdorferi, the spiral-shaped bacterium that causes Lyme disease, requires the organism to migrate from the tick’s gut to its salivary glands, a process triggered by feeding. Animal studies consistently show that this takes time: the CDC states that an infected blacklegged tick must typically be attached for 36–48 hours or more before the bacterium is transmitted. A tick found and removed within 24 hours is very unlikely to have passed on Lyme disease, which is the logic behind daily full-body checks.

Other organisms work on a different clock, and this is where a reassuring statistic can mislead. Powassan virus, a rare but serious cause of brain inflammation carried by the same blacklegged tick, can be transmitted within minutes to hours of attachment because it lives in the saliva from the start. Anaplasmosis and babesiosis, two other blacklegged-tick infections, are thought to require shorter attachment than Lyme disease, though the data are less precise. Rocky Mountain spotted fever from the American dog tick may transmit after a day or less.

How do you estimate attachment time? An engorged tick, visibly swollen and gray-blue rather than flat and brown, has fed for at least a day and probably longer. A flat tick that is easy to remove has likely been attached for only hours. When a bite is discovered after a weekend camping trip and the tick is plump, the honest estimate is “long enough to matter,” and that is worth telling a clinician.

The practical takeaway is not to panic over every attached tick; it is that a routine check at the end of each day outdoors converts a 48-hour risk window into a 24-hour one, cutting Lyme risk sharply.

Signs of infection after a tick bite: the rash and early symptoms

The signature sign of early Lyme disease is erythema migrans, a slowly expanding red rash that begins at the bite site. Despite the familiar image, only a minority of these rashes form the classic bull’s-eye with central clearing. Most are a uniform pink or red oval that grows over days, often warm but rarely itchy or painful. The CDC reports that erythema migrans appears in about 70–80 percent of people who develop Lyme disease, emerging 3–30 days after the bite (most often around day seven) and expanding to 12 inches or more across if untreated. In the United Kingdom, the NHS notes the same rash may take up to three months to appear in some people and can be harder to see on darker skin, where it may look like a bruise.

Alongside or instead of the rash, early infection often brings flu-like symptoms out of flu season: fever, chills, headache, fatigue, muscle aches, joint pain and swollen lymph nodes. Because 20–30 percent of infected people never notice a rash, a summer fever after time outdoors in a Lyme-endemic region deserves to be mentioned to a clinician even without a visible bite.

Two look-alikes cause confusion. The first is the immediate local reaction, a red area smaller than a quarter that appears within hours and fades within two days; it is not erythema migrans. The second is southern tick-associated rash illness (STARI), a similar expanding rash following lone star tick bites in the South and Southeast, which is treated the same way but is not caused by the Lyme bacterium.

Timing, growth and size are the three clues. A mark that is still spreading on day five is the one to act on.

Which tick-borne infections should you know beyond Lyme?

Lyme disease is the most common tick-borne illness in the United States and Europe, but it is one of more than a dozen, and the tick on your skin determines which ones are even possible. The table below summarizes the ones mainstream guidance flags most often in North America; the UK’s main concern remains Lyme disease, with tick-borne encephalitis rare and very localized.

Infection	Main tick	Typical early signs	Usual onset after bite
Lyme disease	Blacklegged (deer) tick	Expanding rash, fever, fatigue, aches	3–30 days
Anaplasmosis	Blacklegged tick	Fever, headache, muscle aches, low blood counts	1–2 weeks
Babesiosis	Blacklegged tick	Fever, chills, fatigue; can be severe without a spleen	1–4 weeks or longer
Powassan virus	Blacklegged tick	Fever, confusion, weakness; may inflame the brain	1 week to 1 month
Rocky Mountain spotted fever	American dog tick, brown dog tick	High fever, headache, rash spreading from wrists and ankles	3–12 days
Ehrlichiosis	Lone star tick	Fever, headache, muscle aches, sometimes rash	1–2 weeks
Alpha-gal syndrome	Lone star tick	Hives, stomach upset or anaphylaxis hours after eating red meat	Weeks to months

Two patterns are worth remembering. Rocky Mountain spotted fever is the most dangerous of the common infections and worsens quickly; the CDC advises that treatment should begin on clinical suspicion rather than waiting for test results, so a high fever and headache within two weeks of a dog tick bite is an urgent conversation. Alpha-gal syndrome is the odd one out: it is an allergy rather than an infection, it arrives late, and its reactions are delayed by three to six hours after a meal, which is why it took medicine so long to connect it to ticks.

Can Lyme disease cause arthritis?

Yes, and it is one of the best-documented late consequences of untreated infection. Lyme arthritis typically appears months after the bite, when the bacterium has spread to the joints. The CDC describes it as intermittent episodes of swelling and pain in one or a few large joints, most often a knee, with the joint strikingly swollen but less painful than the appearance suggests. Historically, around 60 percent of people with untreated Lyme disease went on to develop arthritis; today it is far less common because most infections are recognized and treated early.

The mechanism is twofold. Live bacteria in the joint lining provoke inflammation, and in a smaller group the immune response persists for months after the bacteria have been cleared, a pattern researchers call post-infectious Lyme arthritis. Treatment with antibiotics resolves most cases; the minority with lingering inflammation are managed by rheumatologists with anti-inflammatory approaches. Lyme arthritis is not the same as rheumatoid arthritis and does not generally cause the symmetrical small-joint damage seen in that condition.

Arthritis is not the only late feature. Untreated infection can affect the nervous system, causing facial palsy (drooping on one or both sides of the face), shooting nerve pains, or meningitis-like headache and neck stiffness, usually within weeks to months. A small percentage develop Lyme carditis, an inflammation of the heart’s electrical system that causes dizziness, palpitations or fainting and can require hospital monitoring. In Europe, a chronic skin change on the hands or feet called acrodermatitis chronica atrophicans is also recognized.

The honest message is reassuring with a caveat. These complications are almost entirely a consequence of infections that were missed, and the window for simple treatment is wide. The caveat is that they can be the first sign of Lyme disease in someone who never saw a rash, which is why a swollen knee with no injury should prompt the question “Have you been in tick country?”

Preventive antibiotics after tick bites: who qualifies and who does not

This is the question most people actually want answered when they search, and it has a clearer evidence base than most tick topics. Prophylaxis, meaning medicine given to prevent an infection rather than treat one, is recommended by US infectious disease guidelines only when a specific set of conditions is met at the same time:

• The tick is identified as a blacklegged (Ixodes) tick, not a dog tick or lone star tick.
• It is estimated to have been attached for 36 hours or more, based on engorgement or known exposure time.
• The bite occurred in an area where Lyme disease is common, such as the Northeast, Mid-Atlantic, Upper Midwest or parts of the Pacific Coast.
• Preventive doxycycline can be started within 72 hours of removing the tick.
• There is no reason the person cannot take doxycycline.

When all of these line up, a clinician may prescribe doxycycline as prophylaxis. A randomized controlled trial in a high-incidence area, together with later pooled analyses, found that this approach prevented the large majority of expected Lyme infections, with efficacy estimated at roughly 87 percent in the original study. That is strong evidence for a narrow situation.

When the conditions are not met, guidelines advise observation rather than antibiotics. A dog tick removed after an afternoon hike does not qualify; neither does an unidentified tick found crawling, unattached, on a sleeve. Routine antibiotics for every bite would expose far more people to side effects than to prevented infections.

The NHS takes an even more conservative line, generally not recommending preventive antibiotics after tick bites in the UK, where tick infection rates are lower, and advising treatment only if symptoms develop. Whichever country you are in, this is a prescribing decision. A clinician weighs the tick, the timing, the region and your medical history; the role of this article is to help you bring accurate information to that conversation.

What the evidence actually says about tick bites, graded

Not every piece of tick advice rests on the same foundation. Here is how the main claims stack up, from strongest to weakest.

Treating early Lyme disease with oral antibiotics: strong. Multiple randomized trials over three decades show that courses of doxycycline, amoxicillin or cefuroxime resolve erythema migrans and prevent later complications in the vast majority of people. Guidelines in the US and UK agree. Choice of drug and length of course depend on age, pregnancy, allergies and the stage of illness, and belong to the prescriber.

Attachment time and Lyme transmission: strong but indirect. The 36–48 hour threshold comes from carefully controlled animal experiments and is consistent across studies, backed by human observational data showing engorged ticks carry higher risk. It is not an absolute guarantee for an individual bite.

Preventive doxycycline after high-risk bites: moderate to strong. One well-designed randomized trial plus pooled analyses, applicable only to blacklegged tick bites in endemic areas.

Removal technique: expert consensus plus laboratory data. No one has randomized people to tweezers versus matches. The recommendation rests on the known mechanism of salivary transmission and on animal studies showing that irritants and squeezing increase it. The consensus is unanimous, which counts for something.

Long courses of antibiotics for persistent post-treatment symptoms: evidence of no benefit. Several randomized placebo-controlled trials funded by the NIH found that prolonged intravenous or oral antibiotics did not improve lasting fatigue or pain after treated Lyme disease and carried real risks, including serious infections from intravenous lines. Guidelines advise against them.

Testing the removed tick to guide treatment: expert opinion against. A positive tick does not mean you were infected; a negative tick does not rule out another bite you missed.

Investigational human Lyme vaccine: early-phase immune response data only. Phase 3 results are pending, and the product is not available for use.

Common myths about tick bites and tick removal

“Smother it with petroleum jelly, nail polish or essential oil and it will back out.” Ticks breathe only a few times an hour, so suffocation takes far longer than the video suggests, and a chemically irritated tick may salivate or regurgitate more before it lets go. Every major health agency advises against it. The tweezers are already in your bathroom.

“Burn it off with a match.” Same mechanism, plus a burn. Heat does not make the tick release cleanly.

“Twist counterclockwise; ticks screw themselves in.” Tick mouthparts are barbed, not threaded. Twisting in any direction snaps them off.

“If the head stays in, I will get Lyme disease.” Retained mouthparts cannot transmit the bacterium; the organism is in the body of the tick, which is now gone. Leftover fragments may cause a small local irritation and work their way out.

“No bull’s-eye means no Lyme.” Most erythema migrans rashes are solid red without a ring, and about one in four infected people never notices a rash at all.

“Lyme disease is only in the Northeast.” It is concentrated there and in the Upper Midwest, but blacklegged ticks have expanded their range over the past two decades, and Lyme disease is well established across much of Europe and the UK.

“Ticks jump from trees.” Ticks cannot jump or fly. They wait on grass and low brush with front legs outstretched, a behavior called questing, and climb aboard when something brushes past. Most attach below the waist and crawl upward.

“Send the tick to a lab and you will know if you are safe.” Tick testing is not recommended for clinical decisions. Results take days, false positives and negatives occur, and the result does not change what you watch for.

“A dog’s Lyme vaccine means a human one is being hidden.” Veterinary and human vaccines are separately developed and licensed; the human candidate is still in trials.

Is Lyme disease contagious, and can dogs get it?

Lyme disease is not contagious between people. There is no evidence that it spreads through touching, kissing, sexual contact, coughing or sharing food. The bacterium lives in the tick and moves to a new host only through a bite. The CDC notes that the organism has not been shown to transmit through breast milk, and that there are no documented cases of transmission through blood transfusion, although people being treated for Lyme disease are asked to postpone donating blood. Babesiosis, a different blacklegged-tick infection, can be passed through transfusion, which is why blood services in some regions screen for it.

Pregnancy is a reasonable worry. Untreated Lyme disease during pregnancy has in rare instances been linked to infection of the placenta, but prompt antibiotic treatment is safe in pregnancy and the CDC reports no consistent evidence of harm to the baby when the mother is treated. A pregnant person with a tick bite or suggestive symptoms should simply tell their obstetric team early.

Dogs do get Lyme disease, and quite commonly in endemic areas. Signs in dogs include lameness that shifts between legs, swollen joints, fever, lethargy and reduced appetite, often weeks after exposure; a small number develop a serious kidney complication. Veterinary Lyme vaccines and monthly tick preventives exist, and a veterinarian can advise which suit a particular dog and region. Cats are rarely affected.

The important nuance for families is indirect risk. A dog cannot give you Lyme disease, but a dog that roams through brush can carry unattached ticks into the house and onto the sofa, where they find a human host. Checking the dog after walks, especially around the ears, collar, armpits and between the toes, protects everyone. Tick checks on pets and people on the same evening is a habit that pays off in the two seasons when nymphs and adults are most active.

How to prevent tick bites before they happen

Prevention has a reassuringly short list of measures that work, and most of them cost nothing.

Start with where ticks are. Blacklegged ticks live in leaf litter, tall grass and the brushy edges between lawn and woods, not in the middle of a mown field. Walking in the center of trails and keeping lawns cut and leaf piles cleared reduces encounters substantially. Ticks need humidity; a sunny deck is hostile territory, a shaded stone wall is a tick highway.

Clothing comes next. Light colors make crawling ticks visible. Tucking trousers into socks looks absurd and works, because ticks climb upward from the ground and meet fabric instead of skin. Clothing and gear treated with permethrin, an insecticide that kills ticks on contact and remains active through several washes, is one of the best-studied interventions; the CDC recommends it for people who spend significant time outdoors. Permethrin goes on clothing, never directly on skin.

For exposed skin, use an EPA-registered repellent. DEET, picaridin, IR3535 and oil of lemon eucalyptus are all listed by the CDC as effective against ticks; follow the label, and note that oil of lemon eucalyptus is not recommended for children under three. Repellents reduce bites; they do not eliminate the need to check.

Then the habits that catch what gets through. Showering within two hours of coming indoors has been associated with lower Lyme risk in observational studies, probably because it washes off unattached ticks and prompts a look. Tumbling dry clothes on high heat for about ten minutes kills ticks that hitched a ride. A full-body check in a mirror each evening, with particular attention to the scalp, ears, armpits, groin, waistband and behind the knees, is the single step that turns a possible 48-hour attachment into a harmless one.

When to see a doctor after a tick bite

Most tick bites never need a clinic visit. These situations do.

Arrange a prompt (same week) appointment if:

• A rash at or near the bite keeps expanding beyond 48 hours, with or without central clearing, or a similar rash appears elsewhere on the body.
• You develop fever, chills, headache, unusual fatigue, muscle or joint aches, or swollen glands within a month of a bite, or after time outdoors in tick habitat even if you never saw a tick.
• You removed an engorged blacklegged tick in a Lyme-endemic area within the past 72 hours and want to discuss preventive antibiotics; the timing window is short.
• The bite site becomes increasingly red, warm, swollen or drains pus, suggesting a skin infection.
• You are pregnant, immunocompromised, or have had your spleen removed, since some tick-borne infections run a more serious course.
• A joint, often a knee, swells without injury weeks or months after possible exposure.

Seek urgent or emergency care if:

• High fever with severe headache, stiff neck, confusion, drowsiness or seizures develops; these can signal Powassan virus, severe Rocky Mountain spotted fever or Lyme meningitis.
• One or both sides of the face droop suddenly.
• You experience fainting, palpitations, chest pain or breathlessness, which can indicate Lyme carditis.
• Hives, swelling of the lips or throat, vomiting or difficulty breathing occur hours after eating red meat, a pattern consistent with alpha-gal syndrome.
• A rash spreading from the wrists and ankles accompanies fever after a dog tick bite.

Bring the date of the bite, where you were, a photo of the tick if you have one, and a note of when each symptom started. Diagnosis of early Lyme disease is clinical, meaning a doctor can treat an erythema migrans rash without waiting for blood tests, which are often negative in the first weeks. Every decision about testing, antibiotics and follow-up rests with the clinician who examines you.

Frequently asked questions

How do you treat a tick bite?

Remove the tick promptly with fine-tipped tweezers, wash the site with soap and water or alcohol, and then watch the area and your general health for about 30 days. Most bites need nothing more. If an expanding rash, fever, fatigue or aches develop, see a clinician, who may prescribe antibiotics. Preventive antibiotics are offered only in specific high-risk situations and are a prescriber’s decision.

What is the safest tick removal method if I do not have tweezers?

Improvise a fine grip rather than a chemical. A purpose-made tick removal card or hook works well; failing that, a loop of thread tightened around the mouthparts close to the skin and pulled steadily upward is a recognized alternative. Avoid fingernails, which squeeze the body, and never use heat, oils, soap or petroleum jelly, which can make the tick regurgitate into the wound.

Can dogs get Lyme disease?

Yes. Dogs in endemic areas are frequently infected and may show shifting lameness, swollen joints, fever and lethargy weeks after a bite, with a rare but serious kidney complication. Licensed veterinary vaccines and monthly tick preventives are available through a veterinarian. Dogs cannot transmit Lyme disease to people directly, but they can bring unattached ticks indoors, so check pets after walks.

Can Lyme disease cause arthritis?

It can. Lyme arthritis is a late feature of untreated infection, appearing months after the bite as intermittent swelling of one or a few large joints, most often a knee. Historically about 60 percent of untreated people developed it, but it is now uncommon because early infection is usually recognized and treated. Antibiotics resolve most cases; a minority need rheumatology follow-up for lingering inflammation.

Is Lyme disease contagious?

No. Lyme disease is not spread by touching, kissing, sexual contact, coughing or sharing food, and it has not been shown to pass through breast milk. The bacterium reaches people only through the bite of an infected tick. There are no documented cases of transfusion transmission, although people under treatment are asked to delay donating blood as a precaution.

What does the Lyme disease rash look like on dark skin?

On darker skin, erythema migrans often appears as a growing area of darker, purplish or bruise-like discoloration rather than a bright red ring, which makes it easier to miss. The clue is the same on every skin tone: a patch that keeps expanding over several days to a size larger than a quarter. Photograph it daily and show the sequence to a clinician.

Should I get the tick tested for Lyme disease?

Mainstream guidance says no. Tick testing is not used to make treatment decisions because a positive result does not mean the bacterium was transmitted, a negative result does not rule out a different bite you missed, and results arrive after the window for preventive treatment. Save the tick or a photo for identification if you like, but focus on watching for symptoms.

Can you get Lyme disease if the tick was attached for less than 24 hours?

It is very unlikely. Animal studies show the Lyme bacterium typically needs 36–48 hours of feeding to move from the tick’s gut to its saliva. However, other infections carried by the same tick, including Powassan virus and possibly anaplasmosis, can transmit faster, so a short attachment does not remove the need to watch for fever or headache over the following weeks.

What is alpha-gal syndrome and how is it linked to tick bites?

Alpha-gal syndrome is an allergy to a sugar molecule found in mammalian meat that can develop after bites from the lone star tick. Reactions such as hives, stomach pain or anaphylaxis occur three to six hours after eating beef, pork or lamb, which delays recognition. The CDC identified more than 110,000 suspected cases from 2010 to 2022; an allergist can confirm it with a blood test.

Is there a vaccine for Lyme disease in humans?

Not currently. A human Lyme vaccine was licensed in the United States in 1998 and withdrawn in 2002. An investigational vaccine targeting six strains of the bacterium has been in a Phase 3 trial since 2022, with results awaited; it is not approved and not available outside the study. Vaccines for dogs are licensed and are a separate veterinary product.

References

• CDC: Lyme Disease
• CDC: Ticks
• MedlinePlus: Tick Bites
• NHS: Lyme disease

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.