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Lesions associated with Bartonella taylorii-like bacterium infection in a free-ranging, young-of-the-year raccoon from Prince Edward Island, Canada.

ABSTRACT: A young-of-the year, female raccoon was presented with clinical signs of weakness and tremors. The raccoon was euthanized, and autopsy findings included poor body condition, diffuse lymphadenopathy, and pale, firm kidneys with petechial hemorrhages throughout the renal cortex. Histologic lesions included systemic fibrinoid vascular necrosis and severe renal lesions, including lymphoplasmacytic interstitial nephritis and fibrinosuppurative glomerulonephritis. Inflammatory vascular lesions were also present within the uvea, heart, lymph nodes, and the lamina propria of the gastric wall. Ancillary testing was negative for Borrelia burgdorferi, Leptospira sp., Aleutian disease virus, canine distemper virus, feline coronavirus, porcine circovirus 2, and rabies virus. Transmission electron microscopy revealed large numbers of ~1.3 × 0.35 µm bacterial rods surrounded by a trilaminar cell wall located within the glomeruli and associated with aggregates of fibrin and vascular damage. Analysis of partial citrate synthase gene and 16S-23S ribosomal RNA intergenic spacer region sequences from kidney tissue confirmed that the organism was a Bartonella spp. that was related to numerous Bartonella spp. from shrews in Europe. This group formed a sister clade to the genetically diverse Bartonella taylorii group that has been reported from a wide range of Eurasian rodent and flea species.

SUBMITTER: Fenton H

PROVIDER: S-EPMC7953081 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Molecular diversity of methanogens in feedlot cattle from Ontario and Prince Edward Island, Canada.

Project description:The molecular diversity of rumen methanogens in feedlot cattle and the composition of the methanogen populations in these animals from two geographic locations were investigated using 16S rRNA gene libraries prepared from pooled PCR products from 10 animals in Ontario (127 clones) and 10 animals from Prince Edward Island (114 clones). A total of 241 clones were examined, with Methanobrevibacter ruminantium accounting for more than one-third (85 clones) of the clones identified. From these 241 clones, 23 different 16S rRNA phylotypes were identified. Feedlot cattle from Ontario, which were fed a corn-based diet, revealed 11 phylotypes (38 clones) not found in feedlot cattle from Prince Edward Island, whereas the Prince Edward Island cattle, which were fed potato by-products as a finishing diet, had 7 phylotypes (42 clones) not found in cattle from Ontario. Five sequences, representing the remaining 161 clones (67% of the clones), were common in both herds. Of the 23 different sequences, 10 sequences (136 clones) were 89.8 to 100% similar to those from cultivated methanogens belonging to the orders Methanobacteriales, Methanomicrobiales, and Methanosarcinales, and the remaining 13 sequences (105 clones) were 74.1 to 75.8% similar to those from Thermoplasma volcanium and Thermoplasma acidophilum. Overall, nine possible new species were identified from the two clone libraries, including two new species belonging to the order Methanobacteriales and a new genus/species within the order Methanosarcinales. From the present survey, it is difficult to conclude whether the geographical isolation between these two herds or differences between the two finishing diets directly influenced community structure in the rumen. Further studies are warranted to properly assess the differences between these two finishing diets.

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Complete Genome Sequence of <i>Streptomyces</i> Phage ϕRKBJ001 Isolated from Prince Edward Island, Canada.

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A cross-sectional study of Tritrichomonas foetus infection in feral and shelter cats in Prince Edward Island, Canada.

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The effect of a smoking ban on hospitalization rates for cardiovascular and respiratory conditions in Prince Edward Island, Canada.

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Prevalence and genotypes of Giardia duodenalis in dairy and beef cattle in farms around Charlottetown, Prince Edward Island, Canada.

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Draft Genome Sequence of Streptomyces sp. Strain RKND-216, an Antibiotic Producer Isolated from Marine Sediment in Prince Edward Island, Canada.

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Serologic and urinary survey of exposure to <i>Leptospira</i> species in a feral cat population of Prince Edward Island, Canada.

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Further contributions to the Hydradephaga (Coleoptera, Haliplidae, Gyrinidae and Dytiscidae) fauna of Prince Edward Island, Canada: new records, distributions and faunal composition.

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Incidence of prenatal alcohol exposure in Prince Edward Island: a population-based descriptive study.

Project description:BackgroundFetal alcohol spectrum disorder (FASD) is a leading preventable cause of neurodevelopmental disability in North America. The stigma associated with alcohol use and abuse during pregnancy makes it difficult to obtain information on prenatal alcohol use through self-reporting. We assessed the incidence of prenatal alcohol exposure in Prince Edward Island to facilitate future public health initiatives addressing FASD.MethodsPrenatal alcohol exposure was examined via population-based collection of meconium and analysis of fatty acid ethyl esters (FAEEs). Fatty acid ethyl esters are nonoxidative metabolites of ethanol that are produced in the fetus. Meconium FAEE concentrations of 2.0 nmol/g or greater are indicative of frequent prenatal alcohol exposure during the last 2 trimesters of pregnancy. Samples were collected from 1307 neonates between Nov. 8, 2010, and Nov. 8, 2011, in hospitals in PEI, or from those born to mothers who resided in PEI but gave birth in Halifax, Nova Scotia. Samples were frozen and shipped for analysis. Fatty acid ethyl esters were analyzed by gas chromatography-mass spectrometry and quantified by means of deuterated internal standards.ResultsOf the 1307 samples collected, 1271 samples were successfully analyzed. Positive results for FAEEs were obtained in 3.1% (n = 39) of samples collected within the first 24 hours after birth.InterpretationNot all neonates exposed to heavy prenatal alcohol in utero will exhibit FASD; based on current estimates of predictive value for disease by exposure, our findings suggest that 1.3% of neonates born in PEI during this 1-year period will have FASD. In its application to an entire provincial birth cohort, this study successfully implemented a public health-centred approach for evaluating population-based risk of FASD, with implications for practice across Canada.

| S-EPMC4084744 | biostudies-literature

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