Loading video... VIDEO: QUT air-quality expert Distinguished Professor Lidia Morawska is leading an international call for a "paradigm shift " in combating airborne pathogens such as COVID-19. view more Credit: QUT QUT air-quality expert Distinguished Professor Lidia Morawska is leading an international call for a "paradigm shift" in combating airborne pathogens such as COVID-19, demanding universal recognition that infections can be prevented by improving indoor ventilation systems. Professor Morawska led a group of almost 40 researchers from 14 countries in a call published in Science for a shift in standards in ventilation requirements equal in scale to the transformation in the 1800s when cities started organising clean water supplies and centralised sewage systems.