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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
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]
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 ...
Neuroborreliosis is often preceded by the typical symptoms of Lyme disease, which include erythema migrans and flu-like symptoms such as fever and muscle aches. Neurologic symptoms of neuroborreliosis include the meningoradiculitis (which is more common in European patients), cranial nerve abnormalities, and altered mental status.
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.
Lyme Disease Awareness Month is observed every May internationally, especially in countries where Lyme disease is common. [ 2 ] [ 3 ] Lyme disease is caused by a tick-borne parasite, and Lyme Disease Awareness Month includes initiatives aimed at prevention and early identification of possible Lyme disease cases.
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 ...