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Lyme disease is caused by infected black-legged (or deer) ticks and symptoms of the disease may vary, depending on how long it takes to discover the signs. Show comments Advertisement
About 30,000 cases of Lyme disease in the U.S. are reported to the Centers for Disease Control and Prevention by state and local health departments each year. However, the CDC says that many more ...
Lyme disease is the most common disease spread by ticks in the Northern Hemisphere. [21] [8] Infections are most common in the spring and early summer. [4] Lyme disease was diagnosed as a separate condition for the first time in 1975 in Lyme, Connecticut. It was originally mistaken for juvenile rheumatoid arthritis. [22]
Afzelius published his work 12 years later and speculated the rash came from the bite of an Ixodes tick, meningitic symptoms and signs in a number of cases and that both sexes were affected. This rash was known as erythema chronicum migrans, the skin rash found in early-stage Lyme disease. [18]
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.
It can be caused by infection, massage, electrical treatment, acne medication, allergies, exercise, solar radiation (), photosensitization, [3] acute radiation syndrome, mercury toxicity, blister agents, [4] niacin administration, [5] or waxing and tweezing of the hairs—any of which can cause the affected capillaries to dilate, resulting in redness.
Borrelia afzelii is a species of Borrelia endemic to parts of Eurasia where it is one of the causative agents of Lyme disease.It is transmitted by hard-bodied ticks of the Ixodes genus (Ixodes ricinus in Europe, and Ixodes persulcatus in temperate regions of Asia), infecting various wild mammals in nature.
The early localized stage of Lyme disease is usually days to weeks after the initial infection. As the bacteria spreads from this initial point, redness and inflammation expands as well. Sometimes, the space between the initial bite and outer radius of the rash is cleared of bacteria, leading to a bulls-eye shaped rash, also known as erythema ...
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