Fraser Health is adding some high-tech devices to help fight COVID-19 and other infectious diseases.The health authority has purchased 14 new ultraviolet germicidal irradiation, or UVGI, robots to help disinfect hospitals, alongside two existing robots named Phoenix and Haley.The robots, which will be used in hospitals across the region, emit short pulses of UV light, which damage the DNA and RNA of harmful pathogens, including COVID-19 (SARS-CoV-2), C.