05 December 2018 | 20:29 Asia/Singapore Detecting viruses on MRT with portable device Researchers from Duke-NUS Medical School carrying backpacks with sampling devices attached have successfully detected common airborne viruses on board MRT trains, including influenza, adenovirus and respiratory syncytial virus, which cause flu and flu-like symptoms. http://news.nus.edu.sg/sites/default/files/resources/news/2018/2018-12/2018-12-05/VIRUSES-st-pB5-5dec.pdf