Environmental and structural factors associated with bacterial diversity in household dust across the Arizona-Sonora border.

Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE

Original Publication: London : Nature Publishing Group, copyright 2011-

Dust*/analysis ; Housing*; Arizona ; Humans ; Mexico ; Asthma/epidemiology ; Asthma/microbiology ; Bacteria/genetics ; Bacteria/classification ; Bacteria/isolation & purification ; Female ; Family Characteristics ; Male ; Metagenomics/methods

We previously reported that asthma prevalence was higher in the United States (US) compared to Mexico (MX) (25.8% vs. 8.4%). This investigation assessed differences in microbial dust composition in relation to demographic and housing characteristics on both sides of the US-MX Border. Forty homes were recruited in the US and MX. Home visits collected floor dust and documented occupants' demographics, asthma prevalence, housing structure, and use characteristics. US households were more likely to have inhabitants who reported asthma when compared with MX households (30% vs. 5%) and had significantly different flooring types. The percentage of households on paved roads, with flushing toilets, with piped water and with air conditioning was higher in the US, while dust load was higher in MX. Significant differences exist between countries in the microbial composition of the floor dust. Dust from Mexican homes was enriched with Alishewanella, Paracoccus, Rheinheimera genera and Intrasporangiaceae family. A predictive metagenomics analysis identified 68 significantly differentially abundant functional pathways between US and MX. This study documented multiple structural, environmental, and demographic differences between homes in the US and MX that may contribute to significantly different microbial composition of dust observed in these two countries.
(© 2024. The Author(s).)

Update of: Res Sq. 2023 Sep 29:rs.3.rs-3325336. doi: 10.21203/rs.3.rs-3325336/v1. (PMID: 37841844)

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P01 AI148104 United States AI NIAID NIH HHS; P30 ES006694 United States ES NIEHS NIH HHS; P01 AI148104 United States NH NIH HHS

0 (Dust)

Date Created: 20240604 Date Completed: 20240604 Latest Revision: 20240617

20240617

PMC11150412

10.1038/s41598-024-63356-6

38834753