Face masks ’79-per-cent effective’ in slowing coronavirus spread at home – dpa international

Lining up to enter a Kuala Lumpur hardware shop after Malaysia ended its lockdown on May 4 (Simon Roughneen)

KUALA LUMPUR — Wearing face masks at home can prevent pre-symptomatic transmission of the new coronavirus in households, according to a new study published in the British Medical Journal. The findings, based on interviews with Chinese families carried out by doctors and academics in Australia, China and the United States, suggest that “precautionary [non-pharmaceutical interventions], such as mask use, disinfection and social distancing in households can prevent Covid-19 transmission during the pandemic.” The authors contend that the research shows wearing masks at home to be “79-per-cent effective at curbing transmission before symptoms emerged in the first person infected.” The work was led by the Beijing Centre for Disease Prevention and Control and involved the School of Public Health at the University of Nevada and the University of New South Wales’ Faculty of Medicine.