Publications by authors named "Rachel F Klos"

Article Synopsis
  • The Mycobacterium tuberculosis complex (MTBC) includes pathogens responsible for both human and bovine tuberculosis (TB), with increasing recognition of human-to-cattle transmission over recent years.
  • Several notable cases in the U.S. demonstrate this transmission, including a North Dakota dairy employee whose TB infection was linked to bTB in the herd through genome sequencing.
  • These incidents underscore the need for a comprehensive One Health approach, combining efforts from various sectors to address the risks of MTBC transmission from humans to livestock.
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Objectives: Yersiniosis, a foodborne infection of zoonotic origin caused by the bacteria Yersinia enterocolitica and Yersinia pseudotuberculosis, is a reportable disease in 38 states. Both sporadic and foodborne outbreaks of yersiniosis have been reported in the U.S.

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Salmonella causes about one million illnesses annually in the United States. Although most infections result from foodborne exposures, animal contact is an important mode of transmission. We investigated a case of Salmonella enterica serotype Enteritidis (SE) sternal osteomyelitis in a previously healthy child who cared for two recently deceased guinea pigs (GPs).

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Background: Arcobacter species, primarily Arcobacter butzleri, are widely distributed among animals, infrequently isolated from humans, and previously not associated with outbreaks of foodborne illness. We report results of an investigation of a foodborne outbreak that occurred among attendees of a wedding reception in Wisconsin, United States, and was likely caused by A. butzleri.

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Traceback methods by state regulatory agencies were used to complement traditional epidemiological cluster investigation methods and confirmed hazelnuts (also referred to as filberts) as the vehicle in a multistate outbreak of Escherichia coli O157:H7 infections. Bulk in-shell hazelnut and mixed-nut purchase locations were identified during the initial epidemiological interviews. Based on purchase dates and case onset dates, regulators in Minnesota, Michigan, and Wisconsin traced product back through the supply chain.

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Objective: Turtle-associated salmonellosis was increasingly recognized in the United States during the 1960s, leading to a federal ban in 1975 on the sale of turtles <4 inches in carapace length (small turtles). Although sporadic reports of turtle-associated Salmonella are frequent, outbreaks are rare. In September 2007, several patients with Salmonella enterica serotype Paratyphi B var Java infections reported recent turtle exposure.

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The University of Wisconsin School of Veterinary Medicine (UW-SVM) has implemented a variety of strategies to optimize teaching in dairy herd medicine. These include the provision of opportunities for dairy cow handling and management using a dairy teaching herd for veterinary students throughout the four-year curriculum, exposure for all students in their final year to a substantial first-opinion dairy case load using a private practice-based ambulatory clinic rotation, and, finally, the teaching of dairy herd health management and problem solving in a group of four final-year elective production medicine clinical rotations. On average, since 1986, 32.

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