In South Korea, some companies are using robots to help fight the spread of the coronavirus. Mobile phone company SK Telecom put a robot on the first floor of its Seoul headquarters to observe people and perform cleaning operations. The company says the robot automatically records the body temperature of visitors and can warn officials when a person’s temperature is too high. The machine can also disinfect the floor and release small amounts of fluid for people to clean their hands. The robot, which SK Telecom helped develop, uses machine learning technology to observe when people form groups. If individuals are too close to each other, the robot issues a warning: “Please take part in social distancing.” The company says the robot can also identify people who are not wearing face coverings. South Korean companies have long used robotics to carry out manufacturing and cleaning operations. But the coronavirus crisis has caused an increasing number of companies to use the technology as a way to slow the spread of the virus.