Airlines, hotels, casinos and stocks linked to Wuhan, China, continue to fall as fear of the coronavirus deters international travel and all but halts activity in the virus epicenter. Alpha Pro Tech, Ltd. (NYSE: APT) manufactures masks and protective apparel — goods already in high demand in China. Lakeland Industries, Inc. (NASDAQ: LAKE) also produces protective clothes for high-risk workers, such as the medical professionals and public health officials exposing themselves to patients.