Melania Trump used her platform to promote health officials' recommendation on wearing face masks -- though her husband has said he won't personally wear one
It is not yet clear whether these masks can stop the transmission of coronavirus, the committee noted, particularly the small particles that are potentially exhaled by asymptomatic or presymptomatic individuals.
“The available evidence is inconclusive about the degree to which homemade fabric masks may suppress spread of Covid-19 from the wearer to others. There are no studies of individuals wearing homemade fabric masks, in the course of their typical activities. Only limited, indirect evidence exists regarding the effectiveness of these masks for protecting others, when made and worn by the general public on a regular basis,” the rapid expert consultation said.
The World Health Organization this week also issued new guidance about using masks, emphasizing that medical masks should be reserved for health care workers. The organization also said it would not be making a recommendation for or against the use of nonmedical masks at this time because the use of homemade masks in the community setting “has not been well evaluated.”
“There is limited evidence that wearing a medical mask by healthy individuals in the households or among contacts of a sick patient, or among attendees of mass gatherings may be beneficial as a preventative measure,” the guidance said. “However, there is currently no evidence that wearing a mask by healthy persons in the wider community setting, including universal community masking, can prevent them from infection with respiratory viruses, including Covid-19.
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