Over 4,000 blood drives have been canceled; Bryan Llenas reports. Hospitals in Thailand have begun using "ninja robots" to ease the burden on medical workers and doctors fighting to curb the spread of the coronavirus. The robots, which were originally built to monitor recovering stroke patients, have been repurposed to measure patients' fevers, AFP reported. In this photo taken on March 18, 2020 a robot modified to screen and observe COVID-19 coronavirus patients is photographed at the Regional Center of Robotics Technology at Chulalongkorn University in Bangkok. The machines have, as of Thursday, been used at four hospitals in and around Bangkok, according to the outlet.