Lam TzeHau, Chew Dillon, Zhao Helen, Zhu Pengfei, Zhang Lili, Dai Yajie, Liu Jiquan, Xu Jian
Global BioScience, Procter & Gamble Singapore Innovation Center, Singapore, Singapore.
Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Shandong Energy Institute, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.
Front Microbiol. 2022 Mar 28;13:871017. doi: 10.3389/fmicb.2022.871017. eCollection 2022.
Microbiomes on surfaces in kindergartens, the intermediate transfer medium for microbial exchange, can exert significant impact on the hygiene and wellbeing of young children, both individually and as a community. Here employing 2bRAD-M, a novel species-resolved metagenomics approach for low-biomass microbiomes, we surveyed over 100 samples from seven frequently contacted surfaces by children, plus individual children's palms, in two kindergartens. Microbiome compositions, although kindergarten-specific, were grouped closely based on the type of surface within each kindergarten. Extensive microbial admixture were found among the various sampled sites, likely facilitated by contact with children's hands. Notably, bacterial species with potential human health concerns and potentially antibiotic-resistant, although found across all sampled locations, were predominantly enriched on children's hands instead of on the environmental sites. This first species-resolved kindergarten microbiome survey underscores the importance of good hand hygiene practices in kindergartens and provides insights into better managing hygiene levels and minimizing spread of harmful microbes in susceptible indoor environments.
幼儿园中的表面微生物群作为微生物交换的中间传递介质,会对幼儿个体乃至整个群体的卫生和健康产生重大影响。在此,我们运用2bRAD-M这一针对低生物量微生物群的新型物种解析宏基因组学方法,对两所幼儿园中儿童经常接触的七个表面的100多个样本以及儿童个人的手掌进行了调查。微生物群组成虽因幼儿园而异,但在每个幼儿园内,根据表面类型可紧密分组。在各个采样点之间发现了广泛的微生物混合现象,这可能是由于与儿童手部接触所致。值得注意的是,虽在所有采样地点均发现了对人类健康可能有影响的细菌物种以及潜在的抗生素耐药菌,但它们主要富集在儿童手上,而非环境采样点。这项首次进行的物种解析幼儿园微生物群调查强调了幼儿园良好手部卫生习惯的重要性,并为更好地管理卫生水平以及在易感室内环境中尽量减少有害微生物传播提供了见解。