Lyme disease

What is Lyme disease?
Lyme disease is an infection you can get from being bitten by tiny creatures called ticks. The disease is caused by bacteria that are carried by some ticks. When the tick bites you, the bacteria can get into your body.
There are different kinds of ticks. The ones that can give you Lyme disease are called deer ticks because they often live on deer. The infection can spread to people because deer ticks also bite humans. Dogs and other pets
can get infected too.
Ticks look a bit like tiny spiders. They go through three different stages of growth, called larva, nymph and adult. At each stage of their growth they feed on the blood of different animals, including small animals like squirrels, mice
and some birds. Most cases of Lyme disease happen in the late spring and summer when the young nymph ticks are active and
people are spending more time outdoors.
1
Source:
Centers for Disease Control and Prevention.
Lyme disease: United States, 2001-2002.
Morbidity and Mortality Weekly Report. 2004; 53: 365-369.
Centers for Disease Control and Prevention.
Lyme disease: United States, 2001-2002.
Morbidity and Mortality Weekly Report. 2004; 53: 365-369.

This is a nymph deer tick. It's about the size of a poppy seed.
If a tick bites you it can be worrying. But this doesn't mean you'll definitely get Lyme disease. Not all ticks carry the
bacteria that cause Lyme disease.
2 The chance of a tick being infected with these bacteria depends on which part of the country you are in.
bacteria
Bacteria are tiny organisms. There are lots of different types. Some are harmful and can cause disease. But some bacteria live in your body without causing any harm.
Bacteria are tiny organisms. There are lots of different types. Some are harmful and can cause disease. But some bacteria live in your body without causing any harm.
Source:
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
Also, the tick has to feed from your skin for a long time for it to pass on the bacteria.
2 Doctors think that a tick has to stay feeding on your skin for at least 18 hours to 24 hours for there to be a risk of it passing on the bacteria.
Source:
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
The sooner you spot and remove a tick, the less risk there is that it can pass on the bacteria that causes Lyme disease.
2 See How to remove ticks.
Source:
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
If you are bitten by a tick, it's a good idea to check for the early symptoms of Lyme disease.
Ticks are found in places where there are lots of deer and small animals: forests, plains and areas of high grass.
3
4 Ticks that can pass on Lyme disease are most commonly found in the north-eastern and north-central United States, although
you can catch the infection in almost every state.
1
2
Source:
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Source:
Health Protection Agency.
Lyme borreliosis in England and Wales: 2006.
March 2008. Available at http://www.hpa.org.uk (accessed on 23 May 2008).
Health Protection Agency.
Lyme borreliosis in England and Wales: 2006.
March 2008. Available at http://www.hpa.org.uk (accessed on 23 May 2008).
Source:
Centers for Disease Control and Prevention.
Lyme disease: United States, 2001-2002.
Morbidity and Mortality Weekly Report. 2004; 53: 365-369.
Centers for Disease Control and Prevention.
Lyme disease: United States, 2001-2002.
Morbidity and Mortality Weekly Report. 2004; 53: 365-369.
Source:
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
Shapiro ED
Lyme disease.
Pediatrics in Review. 1998; 19: 147-154.
People who are most at risk of getting Lyme disease include:
3
4
Source:
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Source:
Health Protection Agency.
Lyme borreliosis in England and Wales: 2006.
March 2008. Available at http://www.hpa.org.uk (accessed on 23 May 2008).
Health Protection Agency.
Lyme borreliosis in England and Wales: 2006.
March 2008. Available at http://www.hpa.org.uk (accessed on 23 May 2008).
- People who go walking in or who camp near long grass
- People who live in areas where there are lots of deer
- Farmers
- Forestry workers
- Workers in contact with deer
- Other workers in woodland.
If you work in or go walking in areas where there are ticks, then it is useful to know about the things you can do to prevent
tick bites.
5
6 For more information, see How to prevent tick bites.
Source:
Steere AC.
Lyme disease.
New England Journal of Medicine. 2001; 345: 115-125.
Steere AC.
Lyme disease.
New England Journal of Medicine. 2001; 345: 115-125.
Source:
Wormser GP, Dattwyler RJ, Shapiro ED, et al.
The clinical assessment, treatment, and prevention of Lyme disease, human granulocytic anaplasmosis, and babesiosis: Clinical Practice Guidelines by the Infectious Diseases Society of America.
Clinical Infectious Diseases. 2006; 43: 1089-1134.
Wormser GP, Dattwyler RJ, Shapiro ED, et al.
The clinical assessment, treatment, and prevention of Lyme disease, human granulocytic anaplasmosis, and babesiosis: Clinical Practice Guidelines by the Infectious Diseases Society of America.
Clinical Infectious Diseases. 2006; 43: 1089-1134.
There's no evidence that you can catch Lyme disease from another person, a pet, or other insect bites.
3 And there's no evidence that you can catch the disease from food, water or the air.
3 The bacteria that cause Lyme disease can live in blood that has been stored for donation. People with long-term Lyme disease
have been asked not to donate blood.
3
Source:
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Source:
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Source:
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Centers for Disease Control and Prevention.
Learn about Lyme disease.
Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
Sources for the information on this page:
- Centers for Disease Control and Prevention.Lyme disease: United States, 2001-2002.Morbidity and Mortality Weekly Report. 2004; 53: 365-369.
- Shapiro EDLyme disease.Pediatrics in Review. 1998; 19: 147-154.
- Centers for Disease Control and Prevention.Learn about Lyme disease.Available at http://www.cdc.gov/ncidod/dvbid/lyme (accessed on 21 May 2008).
- Health Protection Agency.Lyme borreliosis in England and Wales: 2006.March 2008. Available at http://www.hpa.org.uk (accessed on 23 May 2008).
- Steere AC.Lyme disease.New England Journal of Medicine. 2001; 345: 115-125.
- Wormser GP, Dattwyler RJ, Shapiro ED, et al.The clinical assessment, treatment, and prevention of Lyme disease, human granulocytic anaplasmosis, and babesiosis: Clinical Practice Guidelines by the Infectious Diseases Society of America.Clinical Infectious Diseases. 2006; 43: 1089-1134.
This information was last updated on Apr 09, 2009
This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment.
© BMJ Publishing Group Limited 2009. All rights reserved.
© BMJ Publishing Group Limited 2009. All rights reserved.
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