Science Quickly
Microbes Share Your Morning Metro Commute
Aug 1, 2018
Christopher Intagliata, a skilled reporter focused on urban microbial analysis, shares intriguing insights from a study of the Hong Kong metro. He reveals how DNA sequencing of commuter's palms shows a vibrant range of microbes, some harmless and others surprisingly resistant to antibiotics. This fascinating interaction between daily commuters and microscopic life highlights how human activities shape microbial ecosystems in urban environments.
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Quick takeaways
- Microbial analysis of the Hong Kong Metro reveals diverse species, including antibiotic-resistant strains, raising concerns about public health.
- The study indicates that microbial profiles change throughout the day, with significant gene transfer occurring between Hong Kong and mainland China.
Deep dives
Microbial Commuters of Hong Kong Metro
The Hong Kong Metro is not only a bustling hub for human commuters but also a means of transport for countless microbes. Researchers studied the microbial presence by swabbing the palms of six volunteers traveling across the metro's eight urban lines. DNA sequencing revealed a diverse range of microbes, including harmless skin and soil varieties as well as some with antibiotic resistance genes. Interestingly, while individual trains exhibited unique microbial profiles during morning commutes, the microbial diversity tended to homogenize by the evening, suggesting that microbes effectively travel throughout the network.
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