Shelves at major supermarket chains remain empty after thousands of workers were forced into self-isolation after coming into close contact with individuals infected with COVID-19. Customers uploaded photos of Australia’s two largest supermarket chains—Coles and Woolworths—showing shelves devoid of fruits, vegetables, meats, bread, and dairy products. One Twitter user wrote, “Coles in Katoomba is looking empty.” Katoomba is located in the Blue Mountains region on the west of Greater Sydney. The current outbreak of the Delta variant in Sydney, which has been ongoing since mid-June, has seen the number of cases in the city reach 29,253, and 34,873 for the entire state of New South Wales (NSW) as of Sept. 21. Last week, Brad Banducci, Woolworths CEO, said that 3,300 workers were in isolation across NSW and Victoria, which is currently dealing with its own outbreak of Delta. “You may have noticed some gaps on the shelf this week, or …