Vaccination of household chickens results in a shift in young children’s diet and improves child growth in rural Kenya

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationUniversity of Nairobien
cg.contributor.affiliationKenya Medical Research Instituteen
cg.contributor.affiliationWashington State Universityen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.crpPolicies, Institutions, and Markets
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierElkanah Otiang: 0000-0002-0336-3099
cg.creator.identifierZoe Campbell: 0000-0002-4759-9976
cg.creator.identifierJonathan Yoder: 0000-0002-9049-9591
cg.creator.identifierLucy Njagi: 0000-0001-8010-6072
cg.creator.identifierGuy Palmer: 0000-0001-5679-4709
cg.howPublishedFormally Publisheden
cg.identifier.dataurlhttps://osf.io/m4vs2/en
cg.identifier.doihttps://doi.org/10.1073/pnas.2122389119en
cg.isijournalISI Journalen
cg.issn1091-6490en
cg.issue24en
cg.journalProceedings of the National Academy of Sciences of the United States of Americaen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.ilriCHICKENSen
cg.subject.ilriDISEASE CONTROLen
cg.subject.ilriVACCINESen
cg.subject.ilriNUTRITIONen
cg.volume119en
dc.contributor.authorOtiang, E.en
dc.contributor.authorYoder, J.en
dc.contributor.authorManian, S.en
dc.contributor.authorCampbell, Zoë A.en
dc.contributor.authorThumbi, Samuel M.en
dc.contributor.authorNjagi, L.W.en
dc.contributor.authorNyaga, P.N.en
dc.contributor.authorPalmer, G.H.en
dc.date.accessioned2022-06-15T07:43:30Zen
dc.date.available2022-06-15T07:43:30Zen
dc.identifier.urihttps://hdl.handle.net/10568/119829
dc.titleVaccination of household chickens results in a shift in young children’s diet and improves child growth in rural Kenyaen
dcterms.abstractChildhood growth faltering remains unacceptably high in sub-Saharan Africa. Rural communities dependent on household food production with limited off-farm income or liquid assets to bridge seasonal food availability are especially vulnerable. A cross-sectional survey in Siaya County, Kenya identified 23.5 and 4.8% of children under 5 y of age as stunted and wasted, respectively, using height-for-age Z (HAZ) scores to detect stunting and weight-for-height Z (WHZ) scores for wasting. Although these households are classified as living in poverty or extreme poverty with very limited off-farm income, households commonly have on-farm resources that could be developed to improve nutrition. While 95% of these households have chickens and consumption of eggs was shown to increase childhood growth by an average of 5%, the average flock size is small and constrained by high mortality due to infectious disease. We hypothesized that interventions to relieve this constraint would translate into household decisions influencing the diets and growth of children. Here, we show that vaccination of chickens against Newcastle disease has a causal impact on children’s consumption of animal source foods rich in protein and micronutrients relative to a high-carbohydrate, grain-based diet. Children in treatment households (chicken vaccination) showed overall increases in scores for both HAZ and WHZ relative to control households, benefiting both girls and boys. The findings demonstrate the impact of directing interventions at common on-farm assets managed by women in rural communities and support programs to enhance productivity at the household level.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2022-06-06
dcterms.bibliographicCitationOtiang, E., Yoder, J., Manian, S., Campbell, Z.A., Thumbi, S.M., Njagi, L.W., Nyaga, P.N. and Palmer, G.H. 2022. Vaccination of household chickens results in a shift in young children’s diet and improves child growth in rural Kenya. Proceedings of the National Academy of Sciences of the United States of America (PNAS) 119(24):e2122389119.en
dcterms.issued2022-06-14
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherNational Academy of Sciencesen
dcterms.subjectvaccinesen
dcterms.subjectdisease controlen
dcterms.subjectchickensen
dcterms.subjectchildrenen
dcterms.typeJournal Article

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