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Lyme disease
Lyme disease is an infectious illness caused by the bacterium Borrelia burgdorferi. It's transmitted mainly through tick bites. The disease was identified in 1975 in a group of children in and around Lyme, Conn. The children showed signs of what initially appeared to be juvenile rheumatoid arthritis. Investigators were alerted to the unusually large numbers of these cases centering on one geographical area and eventually traced the signs and symptoms to their bacterial origins. The condition was named Lyme disease. Lyme disease can affect people of all ages. It's most commonly characterized by a distinctive rash, flu-like symptoms and aching joints. To contract Lyme disease, you have to be bitten by an infected deer tick. Not all deer ticks in a high-risk area are infected with the bacterium that causes Lyme disease. And only a small percentage of people who are bitten by a deer tick get Lyme disease. Still, take proper precautions in areas where ticks live. Increased awareness and prevention are key to avoiding Lyme disease. Signs and symptoms The signs and symptoms of Lyme disease tend to progress as the disease progresses. Yet not everyone who contracts Lyme disease exhibits all of the symptoms. Common signs and symptoms include:
Causes The spiral-shaped bacterium that causes Lyme disease typically is carried by a genus of ticks known as Ixodes. Ixodes, which include the deer tick, live in the low bushes and tall grasses of wooded areas and are more abundant in the spring, summer and fall. Deer ticks are sometimes no bigger than the head of a pin. To contract Lyme disease, you have to be bitten by an infected deer tick. If you're bitten and the tick stays attached to your skin for approximately 48 hours, a bacterium called Borrelia burgdorferi can travel from the tick's gut to your bloodstream. These bacteria soon migrate to parts of the body where they later produce symptoms of Lyme disease. Risk factors Where you live or vacation can affect your chances of getting Lyme disease. So can the type of outdoor activities you enjoy. The most common risk factors for Lyme disease include:
When to seek medical advice Only a minority of tick bites lead to Lyme disease. The longer a tick remains attached to your skin, the greater the risk of contracting the disease. If you know you've been bitten and experience signs and symptoms — particularly if you live in an area where Lyme disease is prevalent — see your doctor immediately. Treatment for Lyme disease is most effective if begun early. Tick bites also can be the cause of other illnesses, such as Rocky Mountain spotted fever, Colorado tick fever, ehrlichiosis and tick paralysis. See your doctor if you have any tick bite that concerns you. Signs and symptoms of Lyme disease may disappear spontaneously, but that doesn't mean the disease is gone. Left untreated, Lyme disease can spread to the rest of your body within 6 months to 2 years, causing arthritis and nervous system problems. Lyme disease > 1 > 2 > 3 > 4 Related Site: Treatments Treatments Programs:
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