Home > Search Results

Results: 6

Tick bites: Overview

Although ticks can carry and spread disease, tick bites do not generally cause health problems. You're much less likely to develop tick-borne encephalitis (TBE) than Lyme disease (Lyme borreliosis).And there are several things you can do to prevent tick bites.

Informed Health Online [Internet] - Institute for Quality and Efficiency in Health Care (IQWiG).

Version: April 20, 2016

Tick bites: Tick-borne encephalitis (TBE)

The risk of getting tick-borne encephalitis (TBE) is much lower than the risk of getting Lyme disease. Only a small number of ticks are infected with the virus. And even if a tick is infected, the virus will not necessarily spread to the people the tick feeds on.A TBE infection can cause symptoms, but it doesn't have to. It often goes unnoticed in children, or the symptoms are only mild and temporary. The symptoms of a mild TBE infection are similar to flu symptoms and include fever, headaches, vomiting and dizziness.TBE is diagnosed by testing blood or cerebrospinal fluid for the TBE virus. Because the disease is caused by a virus, antibiotics won't help. Antiviral drugs are not available for TBE, so there is no anti-TBE therapy. Instead, treatment focuses on relieving the symptoms.Although TBE usually clears up without any lasting health problems, symptoms may last for months. Serious complications are much more common in adults than they are in children. In most children, the course of the disease is mild and long-lasting consequences are very rare.

Informed Health Online [Internet] - Institute for Quality and Efficiency in Health Care (IQWiG).

Version: April 20, 2016

Tick bites: What are ticks and how can they be removed?

Contrary to popular belief, ticks are not insects – they are spider-like arachnids. Adult ticks have eight legs, a round body, and are just a few millimeters in diameter. When ticks feed on blood, their bodies can swell up quite a bit.The castor bean tick is the most commonly found tick in Europe. These ticks mostly feed on the blood of host animals like rodents and deer. The blood of the host animals may contain germs, which are then transferred to the feeding ticks and can be passed on to humans later on.Ticks survive the winter by living underground. As soon as it gets warmer, they become more active again and start looking for hosts to feed on – both animals and humans. Ticks are usually active from March to November – mostly in forests, meadows, parks and gardens. They prefer warm and moist places, and often seek out bushes and grass or spots near the edge of paths or in undergrowth.It is widely believed that ticks drop down on you from trees, but that is not true. Instead, they usually attach to you when you brush against them, often while walking through tall grass or shrubs. Dogs and outdoor cats commonly pick up ticks because they often walk through undergrowth and shrubs.

Informed Health Online [Internet] - Institute for Quality and Efficiency in Health Care (IQWiG).

Version: April 20, 2016

Tick bites: Lyme disease

Some ticks carry Lyme disease, which can be transferred to humans when they bite. This bacterial infection can be prevented if the tick is removed in time. Lyme disease is usually treated with antibiotics. If the infection is left untreated, complications can arise. But that is rare.Lyme disease is an infectious disease caused by bacteria. It is more common than tick-borne encephalitis (TBE), another disease that can be transmitted by ticks. If you are infected with Lyme disease, the skin near the bite becomes inflamed. The bacteria that cause the infection – called Borrelia bacteria – might later go on to attack joints or various organs, but Lyme disease usually doesn't cause any serious symptoms.It is normal for the skin around a tick bite to turn red and itch. This inflammatory reaction has nothing to do with Lyme disease and usually goes away within a few days after the tick is removed. But if the skin near the bite is red a few days or weeks after you were bitten, it could be a sign of Lyme disease. A Lyme disease rash typically spreads outwards with a ring-like appearance until it reaches a diameter of more than five centimeters. This rash is called erythema migrans (Latin for "migrating redness"), or EM rash. Because of its typical appearance, it is also sometimes called a "bull's eye" rash.Typical signs of Lyme disease Illustration: Typical signs of Lyme disease – as described in the informationIt is important to seek medical attention if you develop a rash like this. You should also see a doctor if you develop flu-like symptoms such as fever, headache, drowsiness or aching muscles within six weeks of being bitten. These symptoms could also be signs of Lyme disease, even if you do not have an EM rash.If you do have a typical rash, Lyme disease can be diagnosed just by looking at it. Make sure you remember to tell your doctor that you were bitten by a tick. If it is still not possible to tell whether you have Lyme disease after having a physical examination, your blood might be tested.

Informed Health Online [Internet] - Institute for Quality and Efficiency in Health Care (IQWiG).

Version: April 20, 2016

Vaccines for preventing tick‐borne encephalitis

Tick‐borne encephalitis (TBE) is a disease of the central nervous system caused by a tick‐borne viral infection. TBE can lead to severe neurological syndromes, which can result in death. Many species of wild and domestic animals act as hosts of ticks; transmission to humans occurs often in woodland areas, especially during the summer, which is the time of greatest human outdoor activity. TBE is particularly prevalent in Central and Eastern Europe.

Cochrane Database of Systematic Reviews: Plain Language Summaries [Internet] - John Wiley & Sons, Ltd.

Version: 2009

What are immunological tests?

There are immunological tests for many different medical conditions and purposes – for instance, to test for an allergy, to screen for bowel cancer or to find out if a woman is pregnant.

Informed Health Online [Internet] - Institute for Quality and Efficiency in Health Care (IQWiG).

Version: June 30, 2016

Systematic Reviews in PubMed

See all (31)...

Recent Activity

    Your browsing activity is empty.

    Activity recording is turned off.

    Turn recording back on

    See more...