Ultra-absorptive nanofiber swabs could improve SARS-CoV-2 test sensitivity New research has suggested that nanofibers may prove as high a health risk as asbestos. Asbestosis: A Silent Killer Asbestosis is a lung disease caused by inhaling asbestos, a mineral used in building materials until 1999 in the UK. Asbestos is known to cause a number of health … Continue reading Are nanofibers a health risk? What is in the PCR Tests?