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Description:This photomicrograph shows a stained thin smear of peripheral blood from a newborn child (born in Colorado in 2011) indicating the presence of numerous Borrelia hermsii spirochetes (arrows), consistent with a tickborne relapsing fever (TBRF) infection.
TBRF is a bacterial infection caused by certain species of Borrelia spirochetes and transmitted through the bite of Ornithodoros ticks. The symptoms include recurring episodes of fever, headache, muscle and joint aches, and nausea. TBRF occurs in the western United States and is usually linked to sleeping in rustic, rodent-infested cabins in mountainous areas. Louse-borne relapsing fever is transmitted by the human body louse and is generally restricted to refugee settings in developing regions of the world.
High Resolution: Click here for hi-resolution image (3.17 MB)
Content Providers(s):CDC/ Bacterial Diseases Branch, Fort Collins, Colorado
Creation Date:2011
Photo Credit:
Links:CDC - Morbidity and Mortality Weekly Report (MMWR); “Tickborne Relapsing Fever in a Mother and Newborn Child — Colorado, 2011; Weekly: March 16, 2012 / 61(10);174-176
CDC – National Center for Emerging and Zoonotic Infectious Diseases (NCEZID);
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.