Tick Removal and Lyme Disease
Ticks are small arachnids that feed on the blood of birds and mammals, including humans. They may carry a range of pathogens (bacteria, viruses, protozoans etc) that are then transmitted to the host when they bite. It is therefore important to remove an attached tick as soon as possible to avoid contracting these diseases. It is also important to remove the whole tick in one piece to avoid any pathogen being disgorged into your bloodstream during removal.
Ticks may be carriers of bacterial, viral or other pathogens that they have picked up from other hosts, i.e. local wildlife. When they bite into you, they regurgitate their stomach contents whilst feeding. If they have picked up a pathogen, they will infect your blood with it whilst attached. It is therefore very important to get the tick removed as soon as it is seen. They may stay attached for up to 36 hours increasing the risk of infection throughout that time.
Not all ticks are infectious. Recent estimates state that between 5% and 15% of a local population of ticks may be carrying Lyme Disease. This may also vary from year to year. It is difficult to accurately quantify these figures as not all human cases are reported or treated and there is no active sampling of tick populations. It’s best to be aware of the signs and symptoms and the risks involved in having an infected tick hitch-hike along with you on your outing!
Ticks are also found throughout Europe, Asia, Australia and America. The term Lyme Disease originated from the town of Old Lyme in Connecticut, USA, where there was an outbreak of arthritis linked back to ticks. Ticks in other countries may carry additional diseases and/or different variants compared to UK ticks.
How do you remove a tick safely?
Use a tick removal tool such as tick twisters, tick cards or fine-point tweezers. Do not use domestic or utility tool tweezers with broad tips as they might decapitate the tick and it’s important to remove the whole tick in the process.
Using a tick twister to remove a tick:
Tick Twisters are quick and easy to use. They work by forcing the tick to let go of you and are very successful at getting the whole tick off in one go.
Select the right size of Tick Twister for the tick
Slide the Twister under the side of the tick
Slowly twist/turn the tool and gently lift the tick off
Using a tick card to remove a tick:
Tick cards are easy to carry with you and have small and medium-sized slots in them to ‘flick’ embedded ticks off your skin.
Lay the card flat on your skin alongside the tick
Slide the appropriate size of card slot under the side of the tick
Lever the card up to ‘flick’ the tick off, gently
Don’t flick it too hard else it might just land on another part of your body or someone else!
Using fine-point tweezers to remove a tick:
Tweezers can be a bit fiddly to use as they sometimes pinch the skin as well. Always use fine-point tweezers. Don’t use domestic or utility tool tweezers with a broad point as they might decapitate the head and leave it in your skin.
Grasp the tick with the tweezers where the mouth meets the skin
Slowly and steadily pull the tick up and away from your skin
Ensure you get the whole tick out, especially when using tweezers
After you’ve removed a tick, it is really important to:
Put the tick on a hard surface and crush it using the end of the tick removal tool (unless you want to keep it for evidence or testing)
Clean the wound area with a medi-wipe or soap and water
Monitor the site for any rash that may appear
Check the rest of your body for other ticks
Clean the tick removal tool with a medi-wipe ready for future use
Monitor your health and be alert to any other symptoms
A note on ‘traditional’ methods of tick removal
Fingernails, alcohol, Vaseline, matches and cigarette ends are not effective methods of removing or killing a tick in situ. They only stress the tick into digging deeper, regurgitating more saliva and hence increasing the potential for transmitting any infection. Read more about the Do’s and Don’ts for Ticks in the Outdoors.
Will I feel them bite me?
Ticks inject an anti-coagulant into you which acts like an anaesthetic on your skin and helps them feed on your blood. You most likely won’t feel them during this process which is why it’s important to check yourself regularly when out and about. They are most active between spring and autumn but can be found throughout the year. They latch on to you from alighting from grasses, and bushes and dropping on you from low tree branches. They move to a dark, moist place on your body and latch on with their mouths – in your armpits, stomach, groin, hairline, behind the ears or knees and between the toes.
What is Lyme Disease?
The most well-known tick-borne disease is Lyme Disease, caused by the bacteria Borrelia burgdorferi, carried in the stomach of an infected tick. Lyme Disease can be a lifestyle-changing disease with some serious long-term health implications if not detected and treated early. More and more people are diagnosed with the disease but many more may go undetected. In Scotland, more than 200 cases are reported per year.
What are the signs and symptoms of Lyme Disease?
Early signs – after a tick bite, you may see a red rash where you have removed the tick. Rashes can also appear elsewhere, not just at the bite site. After a few days, the rash may develop into a ‘bulls-eye’ shape on the skin called Erythema migrans. This may appear between 2 – 40 days to first appear after the bite and it may grow over time. If you develop a rash, take a photo and mark the edge of the rash with a pen to monitor any change in size. Not all Lyme Disease rashes form into a bull’s eye shape so don’t wait for it to do this! Go to your GP or Out of Hours clinic as a rash is a diagnostic sign of Lyme Disease and needs to be checked out by a medical professional. Antibiotics are the recommended treatment and 98% of people are fine after treatment.
Without immediate treatment or if that treatment is unsuccessful or delayed, further symptoms may develop within 3 months (or longer – sometimes years) and include flu-like symptoms, facial palsy, muscle or joint pain and heart problems.
Longer-term symptoms – Longer-term symptoms may include chronic fatigue, neurological, and arthritic problems. In the longer term, the infected person’s immune system becomes overworked and the patient feels very drained and exhausted. Neurotransmitters react to the disease by exhibiting heightened emotions, sensitivity to light and noise and lightheadedness when getting up or down.
If you have removed a tick and have any concerns about the reddening of the skin or have any other symptoms, speak to your GP as soon as possible.
How is Lyme Disease treated?
If presented early, a treatment of the antibiotic Doxycycline will usually be prescribed and most people respond well to this with no further symptoms developing. Beyond this stage, or if attendance at your doctor is delayed, antibiotics and/or blood tests may be given or symptoms dealt with other appropriate treatments.
Blood tests at an early stage are not always reliable as it detects the antibodies in your system and these take time to build up enough to be detected by the specific blood test. This is why early blood tests will often give a ‘false negative’ result. Blood tests later on in the progress of the disease are more reliable – but you don’t want to wait for that!
Persistent Lyme Disease
Lyme Disease is not new but is on the increase worldwide and a lot more research into it is ongoing, especially into what is now termed ‘Persistent Lyme Disease’. The main focus of much of the research is on detecting pathogens in different parts of the body. The 3 main symptoms of persistent Lyme disease are fatigue, neuro-cognitive difficulties and musculoskeletal pain.
One of the challenges in studying the effects of Lyme Disease is the research in test tubes, mice or non-human primates is very difficult to detect and monitor the disease. The bacteria appears to behave differently in those hosts or settings.
Some studies have noted that the bacteria can enter a dormant phase and can grow again after antibiotic treatment. Boosting the immune response after antibiotic treatment may help but research is ongoing. Also, treatment with different combinations of antibiotics shows some promise in research. It is hoped that more targeted treatments in the future will result as a result of the worldwide research programmes currently underway.
How can I reduce the risk of catching Lyme Disease?
Stay healthy – a strong healthy body is better equipped to fight off infection or recover from it;
Be alert to the risk of ticks in an area and share this information with your walking group, friends and colleagues;
Always have a tick removal tool handy whether you’re in the countryside or in the garden. Keep a set at home, in the car and at your workplace if appropriate;
Keep to footpaths and avoid long grass and overhanging tree branches;
Inspect yourself regularly whilst outdoors and when you get home. Have a buddy system in your group, family or workplace to inspect each other for ticks;
Wear appropriate clothing in tick-infested areas – a long-sleeved shirt, gaiters or trousers tucked into socks;
Wear light coloured clothing as this may help you see ticks better;
Use insect repellent on your clothes and skin. Check repellents are suitable for children or pregnant women. You can also buy treatments that you wash into clothes that you regularly wear outdoors;
Make sure you do not bring ticks home on your clothes or on your pets.
What other diseases do ticks carry?
Ticks carry other diseases based on the local pathogens they encounter in their many hosts. Although some of these are new to the UK, about 15% of the UK’s Lyme Disease cases come from people who have travelled overseas and picked up the disease there.
Tick-borne Encephalitis (TBE) is a viral infection now confirmed in England and Scotland in recent years. This attacks the nervous system and can result in meningitis, brain inflammation and death. Patients who present early with first-stage symptoms usually recover with the help of painkillers and anti-inflammatories. Patients who develop second-stage symptoms require hospital treatment.
Tick-borne Babesiosis has also recently been diagnosed in patients in the south of England (2020). This is caused by a Babesia protozoan infection from the tick. The disease is rarely tested for by doctors and global levels are unknown. Several species of Babesia cause the disease and the signs and symptoms can be wide-ranging. They include fever, fatigue, anaemia and nausea, symptoms that are common in many other illnesses.
Crimean-Congo Haemorrhagic Fever (CCHF). A viral infection that has no treatment and kills up to 40% of infected humans. This is a similar scale to Ebola or bubonic plague. Domestic animals such as sheep and cattle can maintain the CCHF virus at high levels and this means the potential for CCHF to expand into new regions like Europe is possible.
Severe Fever with Thrombocytopenia Syndrome (SFTS). Only identified in 2009, SFTS has sparked widespread concern throughout much of Asia. In Japan, 57 people have died of the disease since 2013. Signs of the disease can range in severity from relatively mild, such as fever and diarrhoea, to severe which can include organ failure. It is known to be carried by at least two tick species that are spread throughout the world including the UK.
