CC0 Public Domain Experts are working on a new type of ultraviolet light called far-UVC that could be highly effective for reducing airborne transmission of diseases such as COVID-19 and tuberculosis in public spaces. In the face of a persistent global pandemic, disinfectants are more important than ever. More than 3.5 million health care-associated infections occur in the European Union and European Economic Area (EU/EEA) every year.