Controlled Clinical Trial of Mask Use in Households to Prevent Respiratory Virus Transmission
The U.S. Centres for Disease Control and Prevention’s new crisis guidelines to healthcare workers says that where no goggles are available, homemade masks, made of bandannas or scarves, for instance, may be used as being a last option. “That’s how desperate there, they declared”, Livingston says. In China, authorities use drones fitted with loudspeakers to …