By Kelly Tyko | USA TODAYCostco Wholesale Club will continue to offer special operating hours for members 60 and older and vulnerable shoppers every weekday morning.The retailer previously announced plans to reduce its senior hours to twice a week effective the week of July 13 but said on its coronavirus updates page that "due to an increase in COVID-19 cases, Costco will maintain current Special Operating Hours until further notice.Read more on NewsOK.com