FILE - In a Feb. 14, 2020 file photo, employees wear face masks as they stand in a reopened Apple Store in Beijing. Apple Inc. is warning investors that it won't meet its second-quarter financial guidance because the viral outbreak in China has cut production of iPhones. The Cupertino, California-based company said Monday, Feb. 17, 2020 that all of its iPhone manufacturing facilities are outside Hubei province, and all have been reopened, but production is ramping up slowly. (AP Photo/Mark Schiefelbein, File)
Employees wear face masks as they stand in a reopened Apple Store in Beijing. AP

Apple warns coronavirus will hit revenue as production is constrained