Responding to the throngs of people who have emptied their shelves in the last week, grocery stores in the Los Angeles area have started offering specific times for at-risk populations to shop during the coronavirus outbreak. Northgate Market announced Monday that it would open from 7 a.m. to 8 a.m. for residents 65 and older and for residents with disabilities."We recognize the challenge facing seniors and other at-risk populations, and we need to address them by providing them an opportunity to shop for essentials without fear or trepidation," the company said in a statement. Super A Foods in Commerce announced it would offer a special shopping time for residents 65 and older, starting Tuesday. Starting Thursday, Grocery Outlet in Altadena also will offer a specific time for residents 60 and older to shop from 7 a.m. to 8 a.m.