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- W2603376785 abstract "Shigella spp., Salmonella spp. and Yersinia spp. are gastrointestinal pathogens whichcan infect birds, bats, rodents and other small mammals. These animals may serve as reservoirfor many diseases and play an important role in transmission of zoonoses. The destruction ordisturbances of the wildlife habitats have been identified as a factor that lead to the emergenceof these zoonoses outbreaks as habitats can influence the composition of bacterial species.Therefore, this study was conducted to determine the occurrence and association of Shigellaspp., Salmonella spp. and Yersinia spp. in selected wildlife from two natural and threedisturbed habitats., Three sampling trips to Nanga Merit, Pueh and Mount Singai were held forthe samples collection in the study. These areas represented disturbed (Nanga Merit's village,Pueh and foot of Mount Singai) and natural habitats (Nanga Merit's forest and MountSingai's forest). Anal or cloacal swabs, feacal and small intestinal of birds, bats and rodentswere collected aseptically. In addition, soil and water samples were collected along thetrapping routes to represent environmental samples. A total of 714 samples were collectedfrom the animal and environment from the three sampling. XLD and CIN agar were used forthe isolation of Shigella, Salmonella and Yersinia. Shigella, Salmonella and Yersinia wereabsent in all the animal and environmental samples collected from Pueh and Mount Singai.The isolated bacteria were then identified through a series of standard biochemical tests andmultiplex PCR. Through multiplex PCR, virulence genes of Shigella (ipaH and ial) weredetected in three bats and one bird sample from Nanga Merit Village which represent adisturbed habitat. One bird, two bats, a soil and a water sample from the forest in Nanga Meritwhich represent natural habitat were positive for the ipaH and ial gene. One bat isolate fromboth sites at Nanga Merit were positive for the flic gene which is a virulence gene in Salmonella Typhimurium. No Yersinia was found in any of the samples from all the samplingtrips indicating none of the wild animals harboured Yersinia. Birds and bats from villageshowed higher percentage for the presence of virulence genes of Shigella spp. and Salmonellaspp. compared to the forest in Nanga Merit. The Shigella isolates were sequenced andidentified as Shigella boydii strain 3555-77. Two Salmonella strains which were positivelydetected for flic gene in bat samples were sequenced as Salmonella enteric subsp entericserovar Typhimurium. The low occurrence of Shigella and Salmonella in birds and batssamples showed the low transmission risk of these pathogenic bacteria from human, animalsand environment. The absence of Shigella, Yersinia and Salmonella species in soil and waterindicate the low contamination of the bacteria through soil and water in Nanga Merit. Eventhough the number of isolates detected per species examined is low, the potential of infectionrisk of Shigella, Yersinia and Salmonella in the wildlife and environment had to be monitoredto prevent infection in future." @default.
- W2603376785 created "2017-04-07" @default.
- W2603376785 creator A5032756289 @default.
- W2603376785 date "2012-01-01" @default.
- W2603376785 modified "2023-09-28" @default.
- W2603376785 title "Occurrence of Shigella, Yersinia and Salmonella species from selected wildlife and habitats in Sarawak" @default.
- W2603376785 hasPublicationYear "2012" @default.
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