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  1. Lyme disease - Wikipedia › wiki › Lyme_disease

    Lyme disease, also known as Lyme borreliosis, is an infectious disease caused by the Borrelia bacterium which is spread by ticks. The most common sign of infection is an expanding red rash, known as erythema migrans, that appears at the site of the tick bite about a week after it occurred.

  2. Chronic Lyme disease - Wikipedia › wiki › Chronic_lyme_disease

    Chronic Lyme disease (CLD) is the name used by some people with "a broad array of illnesses or symptom complexes for which there is no reproducible or convincing scientific evidence of any relationship to Borrelia burgdorferi infection" to describe their condition and their beliefs about its cause.

    • Some jurisdictions have legislated to protect doctors offering worthless and potentially dangerous treatments
    • Nocebo
    • Dangers of long-term antibiotic therapy
  3. Lyme disease - Simple English Wikipedia, the free encyclopedia › wiki › Lyme_disease

    Lyme disease or borreliosis, is an infectious disease. It is caused by bacteria of the genus Borrelia . The disease is carried by ticks which are parasitic on mammals such as mice and deer .

  4. Lyme disease microbiology - Wikipedia › wiki › Lyme_disease_microbiology
    • Overview
    • Species and strains
    • Epidemiology
    • Lifecycle
    • Genomic characteristics
    • Structure and growth

    Lyme disease, or borreliosis, is caused by spirochetal bacteria from the genus Borrelia, which has 52 known species. Three main species are the main causative agents of the disease in humans, while a number of others have been implicated as possibly pathogenic. Borrelia species in the species complex known to cause Lyme disease are collectively called Borrelia burgdorferi sensu lato not to be confused with the single species in that complex Borrelia burgdorferi sensu stricto which is responsible

    Until recently, only three genospecies were thought to cause Lyme disease: B. burgdorferi s.s.; B. afzelii; and B. garinii. Thirteen distinct genomic classifications of Lyme disease bacteria have been identified worldwide. These include but are not limited to B. burgdorferi s.s., B. afzelii, B. garinii, B. valaisana, B. lusitaniae, B. andersoni, 25015, DN127, CA55, 25015, HK501, B. miyamotoi, and B. japonica. Many of these genomic groups are country or continent specific. For example, without mi

    Lyme disease is most endemic in Northern Hemisphere temperate regions, but sporadic cases have been described in other areas of the world. The number of reported cases of the borreliosis have been increasing, as are endemic regions in North America. Of cases reported to the United States Centers for Disease Control and Prevention, the rate of Lyme disease infection is 7.9 cases for every 100,000 persons. In the 10 states where Lyme disease is most common, the average was 31.6 cases per 100,000 p

    The lifecycle of B. burgdorferi is complex, requiring ticks, and species that are competent reservoirs, often small rodents. Mice are the primary reservoir for the bacteria. Hard ticks have a variety of life histories with respect to optimizing their chance of contact with an appropriate host to ensure survival. The life stages of soft ticks are not readily distinguishable. The first stage to hatch from the egg, a six-legged larva, takes a blood meal from a host, and molts to the first nymphal s

    The genome of B. burgdorferi was the third microbial genome ever to be sequenced, following the sequencing of both H. influenzae and M. genitalium in 1995, and its chromosome contains 910,725 base pairs and 853 genes. One of the most striking features of B. burgdorferi as compared with other bacteria is its unusual genome, which is far more complex than that of its spirochetal cousin Treponema pallidum, the agent of syphilis. In addition to a linear chromosome, the genome of B. burgdorferi strai

    B. burgdorferi is a highly specialized, motile, two-membrane, flat-waved spirochete, ranging from about 9 to 32 μm in length. Because of its double-membrane envelope, it is often mistakenly described as Gram negative, though it stains weakly in Gram stain. The bacterial membranes in at least the B31, NL303 and N40 strains of B. burgdorferi do not contain lipopolysaccharide, which is extremely atypical for Gram negative bacteria; instead, the membranes contain glycolipids. However, the membranes

  5. Erythema migrans - Wikipedia › wiki › Erythema_migrans

    Lyme disease "Erythema migrans is the only manifestation of Lyme disease in the United States that is sufficiently distinctive to allow clinical diagnosis in the absence of laboratory confirmation." [6] [7] Often, but not always, mentions of a target lesion (bull's-eye lesion) are talking about erythema migrans.

  6. Borrelia burgdorferi - Wikipedia › wiki › Borrelia_burgdorferi

    Borrelia burgdorferi is a bacterial species of the spirochete class of the genus Borrelia. B. burgdorferi exists in North America and Europe and until 2016 was the only known cause of Lyme disease in North America (Borrelia mayonii, found in the midwestern US, is also known to cause the disease).

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