Dee Jackson wears a gas mask as she and other shoppers line up before opening at a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderShoppers line up before opening at a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderShoppers line up before opening at a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderA worker regulates the entrance to a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderShoppers look at a man attempting to cut as they line up before opening at a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderA sign explains limits to certain high demand products at the entrance to a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderShoppers line up before opening at a Costco store, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderHaley Holmgren waves goodbye to her friends while packing up to leave Seattle University as administrators ask students to move out of residence halls and suspend in-person classes, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David RyderHaley Holmgren packs up to leave Seattle University as administrators ask students to move out of residence halls and announce a suspension of in-person classes, following reports of coronavirus disease (COVID-19) cases in the country, in Seattle, Washington, U.S. March 14, 2020. REUTERS/David Ryder