- Lyme disease
/luym/, Pathol.an acute inflammatory disease caused by a tick-borne spirochete, Borrelia burgdorferi, characterized by recurrent episodes of decreasing severity in which joint swelling, fever, and rash occur, sometimes with cardiac or nervous system complications.[after Lyme, Conn., where it was first described]
* * *Tick-borne bacterial disease.It was identified in 1975 and named for Old Lyme, Conn. It is caused by a spirochete, Borrelia burgdorferi, transmitted by ticks, which pick it up in the blood of infected animals, mostly deer. Humans can be bitten by ticks in tall grass or fallen leaves. Lyme disease has three stages: a target-shaped rash, often with flulike symptoms; migrating arthritic pain and neurological symptoms (disturbances to memory, vision, or locomotion); and crippling arthritis with symptoms like those of multiple sclerosis and sometimes with facial paralysis, meningitis, or memory loss. Most cases do not progress beyond the first stage, but those that do reach the third stage within two years. Prevention involves avoiding tick bites. Diagnosis can be difficult, especially if the initial rash is not noticed. Early antibiotic treatment can prevent progression. Advanced cases need more powerful antibiotics, and symptoms may recur.
* * *tick-borne bacterial disease that was first conclusively identified in 1975 and is named for the town in Connecticut, U.S., in which it was first observed. The disease has been identified in every region of the United States and in Europe, Asia, Africa, and Australia.Lyme disease is caused by the spirochete (corkscrew-shaped bacterium) Borrelia burgdorferi. The spirochete is transmitted to the human bloodstream by the bite of various species of ticks (tick). In the northeastern United States, the carrier tick is usually Ixodes dammini; in the West, I. pacificus; and in Europe, I. ricinus. Ticks pick up the spirochete by sucking the blood of deer or other infected animals. I. dammini mainly feeds on white-tailed deer and white-footed mice, especially in areas of tall grass, and is most active in summer. The larval and nymphal stages of this tick are more likely to bite humans than are the adult and are therefore more likely to cause human cases of the disease.In humans the disease progresses in three stages. The first and mildest stage is characterized by a circular rash in a bull's-eye pattern that appears anywhere from a few days to a month after the tick bite. The rash is often accompanied by such flulike symptoms as headache, fatigue, chills, loss of appetite, fever, and aching joints or muscles. The majority of persons who contract Lyme disease experience only these first-stage symptoms and never become seriously ill. A minority, however, will go on to the second stage of the disease, which begins two weeks to three months after infection. This stage is indicated by arthritic (arthritis) pain that migrates from joint to joint and by disturbances of memory, vision, movement, or other neurological symptoms. The third stage of Lyme disease, which generally begins within two years of the bite, is marked by crippling arthritis and by neurological symptoms that resemble those of multiple sclerosis. Symptoms vary widely, however, and some persons experience facial paralysis, meningitis, memory loss, mood swings, and an inability to concentrate.Because Lyme disease often mimics other disorders, its diagnosis is sometimes difficult, especially when there is no record of the distinctive rash. Early treatment of Lyme disease with antibiotics is important in order to prevent progression of the disease to a more serious stage. More powerful antibiotics are used in the latter case, though symptoms may recur periodically thereafter.
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Lyme disease — Classification and external resources Nymphal and adult deer ticks can be carriers of Lyme disease. Nymphs are about the size of a poppy seed. ICD 10 A … Wikipedia
Lyme disease — is a bacterial illness caused by a bacterium called a spirochete. Lyme disease is spread by ticks when they bite the skin. Lyme disease can cause abnormalities in the skin, joints, heart and nervous system. Interestingly, the disease only became… … Medical dictionary
Lyme disease — Lyme′ disease [[t]laɪm[/t]] n. pat a chronic, recurrent inflammatory disease characterized by joint pains, fatigue, and sometimes neurological disturbances, caused by a tick borne spirochete, Borrelia burgdorferi, that often induces a transient… … From formal English to slang
Lyme disease — [līm] n. an acute, recurrent, inflammatory disease caused by a spirochete (Borrelia burgdorferi) transmitted by certain ticks (esp. Ixodes dammini), characterized at first by a skin rash, headache, fever, etc. and later by arthritis, neurological … English World dictionary
Lyme disease — noun an acute inflammatory disease characterized by a rash with joint swelling and fever; caused by bacteria carried by the bite of a deer tick • Syn: ↑Lyme arthritis • Hypernyms: ↑zoonosis, ↑zoonotic disease * * * /ˈlaım / noun [noncount] : a… … Useful english dictionary
Lyme disease — Lyme dis|ease [ˈlaım dıˌzi:z] n [U] [Date: 1900 2000; Origin: Old Lyme, town in Connecticut, USA, where the disease was first recognized] a serious illness that is caused by a bite from a ↑tick 1(2) … Dictionary of contemporary English
Lyme disease — Lyme dis|ease [ laım dı,ziz ] noun uncount a serious disease caused by insects called TICKS that can affect your NERVOUS SYSTEM and heart … Usage of the words and phrases in modern English
Lyme disease — Disease caused by Borrelia burgdorferi, a tick borne spirochaete … Dictionary of molecular biology
Lyme disease — noun Etymology: Lyme, Connecticut, where it was first reported Date: 1979 an acute inflammatory disease that is caused by a spirochete (Borrelia burgdorferi) transmitted by ticks (genus Ixodes and especially I. dammini), that is usually… … New Collegiate Dictionary
Lyme disease — (LD, Lyme borreliosis; laīm) A tick borne disease caused by the spirochete Borrella burgdorferi … Dictionary of microbiology