Optimizing syndromic health surveillance in free ranging great apes: The case of Gombe National Park

October 23, 2018
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Syndromic surveillance is an incipient approach to early wildlife disease detection. Consequently, systematic assessments are needed for methodology validation in wildlife populations. We evaluated the sensitivity of a syndromic surveillance protocol for respiratory disease detection among chimpanzees in Gombe National Park, Tanzania. Empirical health, behavioural, and demographic data were integrated with an agent‐based, network model…

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Animal production, animal health and food safety: Gaps and challenges in the Chilean industry

October 22, 2018
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This paper summarizes the gaps and challenges related to animal production, health, and food safety as discussed by a panel at the 1st International Symposium of Food Safety (ISFS) in Santiago, Chile, in December 2016. Participating representatives of academia, industry, and government and statements from the audience confirmed that food safety is essential for increasing…

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Associations between nutrition, gut microbiome, and health in a novel nonhuman primate model

July 24, 2018
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Red-shanked doucs (Pygathrix nemaeus) are endangered, foregut-fermenting colobine primates which are difficult to maintain in captivity. There are critical gaps in our understanding of their natural lifestyle, including dietary habits such as consumption of leaves, unripe fruit, flowers, seeds, and other plant parts. There is also a lack of understanding of enteric adaptations, including their…

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Vaccination against Lawsonia intracellularis decreases shedding of Salmonella enterica serovar Typhimurium in co-infected pigs and alters the gut microbiome

February 12, 2018
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Salmonella enterica serovar Typhimurium continues to be a major cause of foodborne illness worldwide and pork can serve as a source of infection. Co-infection of S. enterica with Lawsonia intracellularis, a common intestinal pathogen of swine, has been found as risk factor for increased S. enterica shedding. The objective of this study was to investigate…

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Development of a polymerase chain reaction assay for quantification of Lawsonia intracellularis

September 17, 2010
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The objective of the present study was to develop a quantitative polymerase chain reaction (qPCR) assay using SYBR Green for quantification of Lawsonia intracellularis in cell culture and pig fecal samples. Specific primers were designed and tested using the aspartate ammonia-lyase (aspA) gene as a target. Serial 10-fold dilutions of cell culture samples and several…

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Evaluation of in vitro bactericidal activity of commercial disinfectants against Lawsonia intracellularis

February 23, 2010
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Objective: To evaluate the bactericidal activity of seven commercial disinfectants against Lawsonia intracellularis using a tissue culture system. Materials and methods: Two L intracellularis isolates were tested for susceptibility to several classes of disinfectants, including iodine, a biguanide, phenol, an oxidizing agent, a quaternary ammonium compound (QAC), and the combinations of QACs with aldehydes (formaldehyde and glutaraldehyde). All disinfectants were diluted…

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Exploratory spatial data analysis of regional seroprevalence of antibodies against epizootic hemorrhagic disease virus in cattle from Illinois and Indiana

September 17, 2008
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OBJECTIVE: To estimate seroprevalence of antibodies against the serogroup of epizootic hemorrhagic disease viruses (EHDVs) and describe spatial distribution of antibodies against EHDV among cattle herds in Illinois and western Indiana. SAMPLE POPULATION: 9,414 serum samples collected from cattle in 60 herds over 3 transmission seasons. PROCEDURES: Serum samples were tested for antibodies against EHDV…

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