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  • 1.
    Atterby, Clara
    et al.
    Uppsala Univ, Sweden.
    Osbjer, Kristina
    Swedish Univ Agr Sci SLU, Sweden; Food and Agr Org United Nations, Cambodia.
    Tepper, Viktoria
    Swiss Fed Inst Technol, Switzerland.
    Rajala, Elisabeth
    Swedish Univ Agr Sci SLU, Sweden.
    Hernandez, Jorge
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Medicine and Health Sciences. Kalmar Cty Council, Dept Infect Dis, Sweden; Linnaeus Univ, Sweden; Kalmar Cty Hosp, Sweden.
    Seng, Sokerya
    Food and Agr Org United Nations, Cambodia.
    Holl, Davun
    Minist Agr Forestry and Fisheries, Cambodia.
    Bonnedahl, Jonas
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology, Infection and Inflammation. Linköping University, Faculty of Medicine and Health Sciences. Linnaeus Univ, Sweden.
    Börjesson, Stefan
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology, Infection and Inflammation. Linköping University, Faculty of Medicine and Health Sciences. Natl Vet Inst SVA, Sweden.
    Magnusson, Ulf
    Swedish Univ Agr Sci SLU, Sweden.
    Jarhult, Josef D.
    Uppsala Univ, Sweden.
    Carriage of carbapenemase- and extended-spectrum cephalosporinase-producing Escherichia coli and Klebsiella pneumoniae in humans and livestock in rural Cambodia; gender and age differences and detection of bla(OXA-48 )in humans2019In: Zoonoses and Public Health, ISSN 1863-1959, E-ISSN 1863-2378Article in journal (Refereed)
    Abstract [en]

    Objectives This study investigates the frequency and characteristics of carbapenemase-producing Escherichia coli/Klebsiella pneumoniae (CPE/K) and extended-spectrum cephalosporinase-producing E. coli/K. pneumoniae (ESCE/K) in healthy humans and livestock in rural Cambodia. Additionally, household practices as risk factors for faecal carriage of ESCE/K are identified. Methods Faecal samples were obtained from 307 humans and 285 livestock including large ruminants, pigs and poultry living in 100 households in rural Cambodia in 2011. Each household was interviewed, and multilevel logistic model determined associations between household practices/meat consumption and faecal carriage of ESCE/K. CPE and ESCE/K were detected and further screened for colistin resistance genes. Results CPE/K isolates harbouring bla(OXA-48 )were identified in two humans. The community carriage of ESCE/K was 20% in humans and 23% in livestock. The same ESBL genes: bla(CTX-M-15), bla(CTX-M-14), bla(CTX-M-27), bla(CTX-M-55), bla(SHV-2), bla(SHV-12), bla(SHV-28); AmpC genes: bla(CMY-2), bla(CMY-42,) bla(DHA-1); and colistin resistance genes: mcr-1-like and mcr-3-like were detected in humans and livestock. ESCE/K was frequently detected in women, young children, pigs and poultry, which are groups in close contact. The practice of burning or burying meat waste and not collecting animal manure indoors and outdoors daily were identified as risk factors for faecal carriage of ESCE/K. Conclusions Faecal carriage of E. coli and K. pneumoniae harbouring extended-spectrum cephalosporinase genes are common in the Cambodian community, especially in women and young children. Exposure to animal manure and slaughter products are risk factors for intestinal colonization of ESCE/K in humans.

  • 2.
    Bi, Z.
    et al.
    Shandong Ctr Dis Control and Prevent, Peoples R China.
    Sun, C.
    China Agr Univ, Peoples R China.
    Borjesson, S.
    Natl Vet Inst SVA, Sweden.
    Chen, B.
    Shandong Ctr Dis Control and Prevent, Peoples R China.
    Ji, X.
    China Agr Univ, Peoples R China.
    Berglund, Björn
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Wang, M.
    Shandong Ctr Dis Control and Prevent, Peoples R China.
    Nilsson, Maud
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Yin, Hong
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Sun, Q.
    Shandong Univ, Peoples R China; Shandong Univ, Peoples R China.
    Hulth, A.
    Publ Hlth Agcy Sweden, Sweden.
    Wang, Y.
    China Agr Univ, Peoples R China.
    Wu, C.
    China Agr Univ, Peoples R China.
    Bi, Z.
    Shandong Ctr Dis Control and Prevent, Peoples R China.
    Nilsson, Lennart E
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Identical genotypes of community-associated MRSA (ST59) and livestock-associated MRSA (ST9) in humans and pigs in rural China2018In: Zoonoses and Public Health, ISSN 1863-1959, E-ISSN 1863-2378, Vol. 65, no 3, p. 367-371Article in journal (Refereed)
    Abstract [en]

    This study investigated the prevalence of MRSA in samples taken in households, with and without backyard pigs in villages in a rural area of Shandong Province, China. Community-associated MRSA and livestock-associated MRSA, belonging to ST59 and ST9, respectively, were identified in both humans and pigs. The genotypic and phenotypic comparison of isolates indicates that bidirectional transmission of MRSA has occurred between humans and pigs in the villages.

  • 3.
    Bucardo, F.
    et al.
    National Autonomous University of Leon UNAN Leon, Nicaragua.
    Gonzalez, F.
    National Autonomous University of Leon UNAN Leon, Nicaragua.
    Reyes, Y.
    National Autonomous University of Leon UNAN Leon, Nicaragua.
    Blandon, P.
    National Autonomous University of Leon UNAN Leon, Nicaragua.
    Saif, L.
    Ohio State University, OH USA.
    Nordgren, Johan
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Seroprevalence in Household Raised Pigs Indicate High Exposure to GII Noroviruses in Rural Nicaragua2016In: Zoonoses and Public Health, ISSN 1863-1959, E-ISSN 1863-2378, Vol. 63, no 8, p. 600-607Article in journal (Refereed)
    Abstract [en]

    Information about porcine norovirus (PoNoV), genetically similar to human NoV (HuNoV), is limited from rural areas where household-raised pigs are heavily exposed to faecal material which could facilitate transmission. Histoblood group antigens (HBGAs) are known susceptibility factors to NoV in humans and in a germfree piglet model but their role in susceptibility in the porcine population remains unknown. This study reports: (i) the seroprevalence and antibody titres to human norovirus (NoV) VLPs in household raised pigs; (ii) the distribution of HBGAs in relation to NoV IgG antibody titres and further characterization by blocking of GII. 4 VLP binding to pig gastric mucins (PGM). The majority of pigs were seropositive to all three VLPs tested (58-70%) with seropositivity and cross-reactivity increasing significantly with age. However, pig sera could not block the binding of NoV GII. 4 VLPs (Dijon) to PGM suggesting no previous infection with this genotype. The majority of the pigs were H-positive (84%), a susceptibility factor for human infections. IgG antibody titres were however higher in H-negative (GMT = 247) as compared with H-positive (GMT = 57) pigs, but after age stratification, this difference in antibody titres was only observed in pigs = 1 month of age. In conclusion, serological data show that the porcine population of Nicaragua is highly exposed to NoV infections, and the association to HBGAs warrants further investigation.

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