12 Exhaled SARS-CoV-2 viral load kinetics measured by facemask sampling and its association with household transmission – a longitudinal cohort study - Daniel Pan; Caroline Williams; Jonathan Decker; Eve Fletcher; Shirley Sze; Sara Assadi; Richard Haigh; Baber Saleem; Joshua Nazareth; Natalie Garton; Manish Pareek; Michael Barer (Clinical Infection in Practice, 2022)