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Updated: Jun 11, 2025

Detecting the Lyme Disease Spirochete, Borrelia Burgdorferi, in Ticks Using Nested PCR
Published on: February 4, 2018
Surveillance data from 2011-2020 indicate a lower risk of Lyme disease in the USA in even-numbered years
Gary P Wormser1, Lindsey M Schneider2, Julie T Joseph2
1Division of Infectious Diseases, Department of Medicine, New York Medical College, 40 Sunshine Cottage Road, Skyline Office #2N-E14, Valhalla, NY, USA. gwormser@nymc.edu.
Abstract:
From 2011-2020 the number of reported cases of Lyme disease in the USA was lower in each even-numbered year compared with the preceding odd-numbered year. This observation suggests that fewer nymphal stage Ixodes scapularis ticks infected with Borrelia burgdorferi were present during even-numbered years in locations where people spend time.
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