Coronavirus Information for the UC San Diego Community

Our leaders are working closely with federal and state officials to ensure your ongoing safety at the university. Stay up to date with the latest developments. Learn more.

Home chemical and microbial transitions across urbanization

TitleHome chemical and microbial transitions across urbanization
Publication TypeJournal Article
Year of Publication2020
AuthorsMcCall L.I, Callewaert C., Zhu Q.Y, Song S.J, Bouslimani A., Minich J.J, Ernst M., Ruiz-Calderon J.F, Cavallin H., Pereira H.S, Novoselac A., Hernandez J., Rios R., Branch O.H, Blaser M.J, Paulino L.C, Dorrestein PC, Knight R., Dominguez-Bello M.G
Date Published2020/01
Type of ArticleArticle
ISBN Number2058-5276
Accession NumberWOS:000517158800019
Keywordsdiversity; impact; microbiology; molecular cartography

Urbanization represents a profound shift in human behaviour, and has considerable cultural and health-associated consequences(1,2). Here, we investigate chemical and microbial characteristics of houses and their human occupants across an urbanization gradient in the Amazon rainforest, from a remote Peruvian Amerindian village to the Brazilian city of Manaus. Urbanization was found to be associated with reduced microbial outdoor exposure, increased contact with housing materials, antimicrobials and cleaning products, and increased exposure to chemical diversity. The degree of urbanization correlated with changes in the composition of house bacterial and microeukaryotic communities, increased house and skin fungal diversity, and an increase in the relative abundance of human skin-associated fungi and bacteria in houses. Overall, our results indicate that urbanization has large-scale effects on chemical and microbial exposures and on the human microbiota.

Student Publication: 
Research Topics: