<P> Carl Lennhoff, who worked at the Karolinska Institute in Sweden, believed many skin conditions were caused by spirochetes . In 1948, he used a special stain to microscopically observe what he believed were spirochetes in various types of skin lesions, including EM . Although his conclusions were later shown to be erroneous, interest in the study of spirochetes was sparked . In 1949, Nils Thyresson, who also worked at the Karolinska Institute, was the first to treat ACA with penicillin . In the 1950s, the relationship among tick bite, lymphocytoma, EM and Bannwarth's syndrome was recognized throughout Europe leading to the widespread use of penicillin for treatment in Europe . </P> <P> In 1970, a dermatologist in Wisconsin named Rudolph Scrimenti recognized an EM lesion in a patient after recalling a paper by Hellerström that had been reprinted in an American science journal in 1950 . This was the first documented case of EM in the United States . Based on the European literature, he treated the patient with penicillin . </P> <P> The full syndrome now known as Lyme disease was not recognized until a cluster of cases originally thought to be juvenile rheumatoid arthritis was identified in three towns in southeastern Connecticut in 1975, including the towns Lyme and Old Lyme, which gave the disease its popular name . This was investigated by physicians David Snydman and Allen Steere of the Epidemic Intelligence Service, and by others from Yale University, including Dr. Stephen Malawista, who is credited as a co-discover of the disease . The recognition that the patients in the United States had EM led to the recognition that "Lyme arthritis" was one manifestation of the same tick - borne condition known in Europe . </P> <P> Before 1976, the elements of B. burgdorferi sensu lato infection were called or known as tick - borne meningopolyneuritis, Garin - Bujadoux syndrome, Bannwarth syndrome, Afzelius' disease, Montauk Knee or sheep tick fever . Since 1976 the disease is most often referred to as Lyme disease, Lyme borreliosis or simply borreliosis . </P>

Where does the name lyme disease come from
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