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  • Pascoe, BenUniv Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England.;Chiang Mai Univ, Fac Associated Med Sci, Chiang Mai, Thailand. (författare)

Genomic epidemiology of Campylobacter jejuni associated with asymptomatic pediatric infection in the Peruvian Amazon

  • Artikel/kapitelEngelska2020

Förlag, utgivningsår, omfång ...

  • 2020-08-10
  • PUBLIC LIBRARY SCIENCE,2020
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-421549
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-421549URI
  • https://doi.org/10.1371/journal.pntd.0008533DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Author summary Campylobacteris the leading bacterial cause of gastroenteritis worldwide and despite high incidence in low- and middle-income countries (LMICs), where infection can be fatal, culture based isolation is rare and the genotypes responsible for disease have not broadly been identified. The epidemiology of disease is different to that in high income countries, where sporadic infection associated with contaminated food consumption typically leads to acute gastroenteritis. In some LMICs infection is endemic among children and common asymptomatic carriage is associated with malnutrition, attenuated growth in early childhood, and poor cognitive and physical development. Here, we sequenced the genomes of isolates sampled from children in the Peruvian Amazon to investigate genotypes associated with varying disease severity and the source of infection. Among the common globally circulating genotypes and local genotypes rarely seen before, no single lineage was responsible for symptomatic or asymptomatic infection-suggesting an important role for host factors. However, consistent with other countries, poultry-associated strains were a likely major source of infection. This genomic surveillance approach, that integrates microbial ecology with population based studies in humans and animals, has considerable potential for describing cryptic epidemiology in LMICs and will inform work to improve infant health worldwide. Campylobacteris the leading bacterial cause of gastroenteritis worldwide and its incidence is especially high in low- and middle-income countries (LMIC). Disease epidemiology in LMICs is different compared to high income countries like the USA or in Europe. Children in LMICs commonly have repeated and chronic infections even in the absence of symptoms, which can lead to deficits in early childhood development. In this study, we sequenced and characterizedC.jejuni(n = 62) from a longitudinal cohort study of children under the age of 5 with and without diarrheal symptoms, and contextualized them within a globalC.jejunigenome collection. Epidemiological differences in disease presentation were reflected in the genomes, specifically by the absence of some of the most common global disease-causing lineages. As in many other countries, poultry-associated strains were likely a major source of human infection but almost half of local disease cases (15 of 31) were attributable to genotypes that are rare outside of Peru. Asymptomatic infection was not limited to a single (or few) human adapted lineages but resulted from phylogenetically divergent strains suggesting an important role for host factors in the cryptic epidemiology of campylobacteriosis in LMICs.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Schiaffino, FrancescaJohns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA.;Univ Peruana Cayetano Heredia, Fac Vet Med, Lima, Peru. (författare)
  • Murray, SusanUppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab,Swansea Univ, Med Sch, Singleton Pk, Swansea, W Glam, Wales.(Swepub:uu)susmu240 (författare)
  • Meric, GuillaumeUniv Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England.;Baker Heart & Diabet Inst, Cambridge Baker Syst Genom Initiat, Melbourne, Vic, Australia.;Monash Univ, Cent Clin Sch, Dept Infect Dis, Melbourne, Vic, Australia. (författare)
  • Bayliss, Sion C.Univ Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England. (författare)
  • Hitchings, Matthew D.Swansea Univ, Med Sch, Singleton Pk, Swansea, W Glam, Wales. (författare)
  • Mourkas, EvangelosUniv Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England. (författare)
  • Calland, Jessica K.Univ Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England. (författare)
  • Burga, RosaNaval Med Res Unit 6 NAMRU 6, Bacteriol Dept, Iquitos, Peru. (författare)
  • Yori, Pablo PenataroUniv Virginia, Div Infect Dis & Int Hlth, Charlottesville, VA 22901 USA.;Assoc Benefice Prisma, Loreto, Peru. (författare)
  • Jolley, Keith A.Univ Oxford, Dept Zool, South Parks Rd, Oxford, England. (författare)
  • Cooper, Kerry K.Univ Arizona, Sch Anim & Comparat Biomed Sci, Tucson, AZ USA. (författare)
  • Parker, Craig T.ARS, Produce Safety & Microbiol Res Unit, USDA, Albany, CA USA. (författare)
  • Olortegui, Maribel ParedesAssoc Benefice Prisma, Loreto, Peru. (författare)
  • Kosek, Margaret N.Univ Virginia, Div Infect Dis & Int Hlth, Charlottesville, VA 22901 USA.;Assoc Benefice Prisma, Loreto, Peru. (författare)
  • Sheppard, Samuel K.Univ Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England.;Chiang Mai Univ, Fac Associated Med Sci, Chiang Mai, Thailand.;Univ Oxford, Dept Zool, South Parks Rd, Oxford, England. (författare)
  • Univ Bath, Milner Ctr Evolut, Dept Biol & Biochem, Bath, Avon, England.;Chiang Mai Univ, Fac Associated Med Sci, Chiang Mai, Thailand.Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA.;Univ Peruana Cayetano Heredia, Fac Vet Med, Lima, Peru. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:PLoS Neglected Tropical Diseases: PUBLIC LIBRARY SCIENCE14:81935-27271935-2735

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