Hong Kong: Media attend a news conference as a robot sprays hydrogen peroxide during a demonstration in train carriage in Hong Kong, Wednesday, March 11, 2020. Hong Kong subway welcomes a new worker to clean up the carriage amid the outbreak of the coronavirus across the city. Together with a local biotechnology science company, the MTR, one of the major public transport networks serving Hong Kong, deploys 20 Vaporized Hydrogen Peroxide Robots to sterilize the subway carriages. AP/PTI(AP11-03-2020_000152B)