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From VOA Learning English, this is the Health Report.
Bladder cancer is the ninth most common cancer in the world. An estimated 12 million new cases are found every year. Now, researchers say they have developed a “scent device” that can identify the disease. The device is called the Odoreader. It has a sensor that finds chemicals in the gasses released by urine. The device takes about 30 minutes to analyze the odors in a urine sample. The Institute of Biosensor Technology at the University of the West of England in Bristol developed the device. Chris Probert at the University of Liverpool was part of a team that tested it. Mr. Probert says the results are highly accurate. Researchers tested the Odoreader on 98 urine samples. Twenty-four were from patients known to have bladder cancer. Seventy-four were from people who had bladder infections, but not bladder cancer. The device identified every one of the patients with bladder cancer.
Mr. Probert says researchers in other labs are developing sniffing devices to diagnose stomach cancer, another common disease worldwide. An earlier study showed that dogs could be trained to detect bladder cancer based on the odor of urine. However, the dogs’ noses were not nearly as reliable as the new device. Mr. Probert says the scent device could someday be used to monitor the health of workers in industries like rubber and insulation manufacturing. Those employees have a high risk of cancer. Bladder cancer is now found by looking for blood in the urine. Mr. Probert says researchers have not yet identified which gasses in urine make the scent unique to bladder cancer. But he says they are working on that, and on odor-reading devices to diagnose other cancers. An article on the Odoreader appeared in the journal PLoS ONE from the Public Library of Science.