[Courtesy of KIST]SEOUL -- A venture company established by South Koreas state research institute has received government approval to sell a newly-developed nasal spray-type medical device for the prevention of infectious diseases. The so-called spray-type mask is activated by light to eliminat[Courtesy of KIST]SEOUL -- A venture company established by South Koreas state research institute has received government approval to sell a newly-developed nasal spray-type medical device for the prevention of infectious diseases. The so-called spray-type mask is activated by light to eliminat... State institute commercializes nasal spray-type medical device for disease prevention