‘While face masks and frequent disinfection is widely assumed to prevent Covid-19 transmission, a new study has lent weight to the usefulness of these measures in ‘real world’ situations. In a paper published in the journal BMJ Global Health yesterday, researchers found that wearing face masks at home before the primary case showed symptoms slashed the risk of secondary infections by 79 percent. Wearing masks after symptoms appeared had no effect.’
Read here (Malaysiakini, May 29, 2020)
