Conor Browne, an independent Biorisk Consultant, analyses biosecurity risks for governmental bodies, commercial enterprises and NGOs, aiding with business continuity, forecasting and policy. He understood that Covid-19 was airborne in February 2020 but, he says, “it’s the first message that sticks”. In this week’s episode he discusses how our governments’ initial messaging of handwashing and surface-to-surface transmission had a huge impact on the course of the pandemic. We t...