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Lyme disease, also known as Lyme borreliosis, is a tick-borne disease caused by species of Borrelia bacteria, transmitted by blood-feeding ticks in the genus Ixodes. [4] [9] [10] The most common sign of infection is an expanding red rash, known as erythema migrans (EM), which appears at the site of the tick bite about a week afterwards. [1]
Eight are known to cause Lyme disease or Borreliosis. [6] The major Borrelia species causing Lyme disease are Borrelia burgdorferi, Borrelia afzelii, and Borrelia garinii. [23] All species that cause Lyme disease are referred to collectively as B. burgdorferi sensu lato, [10] while B. burgdorferi itself is specified as B. burgdorferi sensu stricto.
There were more than 62,000 cases of Lyme disease reported to the US Centers for Disease Control and Prevention in 2022 – nearly a 70% jump from the annual average from 2017 to 2019, according ...
Generally a two-step approach is followed. First, a screening test involving IgM and IgG ELISA. If the ELISA screening has a positive or equivocal result, then the second step is to perform a Western Blot as a confirmatory test. Other methods include microscopy and culture (in modified Kelly's medium) of skin biopsy or blood samples.
Anywhere from 30,000 up to 500,000 people develop Lyme disease from a tick bite each year, according to the C DC.For most, the infection is mild and easily treated with antibiotics.
B. burgdorferi is the causative agent of Lyme disease and is why this bacteria is so important and being studied. It is most commonly transmitted from ticks to humans. Humans act as the tick's host for this bacteria. Lyme disease is a zoonotic, vector-borne disease transmitted by the Ixodes tick (also the vector for Babesia and Anaplasma).
Sometimes, people with Lyme disease also report chills with no fever, says Dr. Quinlan. If you have a history of a tick bite, especially if you’ve seen a bullseye-shaped rash at the site of the ...
The results of a 2024 study note that more than 88,000 Medicare beneficiaries over ages 65 years received a diagnosis and treatment for Lyme disease from 2016 to 2019. Most diagnoses were males in ...