Supermarkets in Brussels are now offering shoppers a COVID-19 vaccine. Customers can get the single Johnson and Johnson jab in just 15 minutes at two Carrefour stores.... It's the same quality control," says Rasmane, a 34-year-old resident of Wallonia, the French-speaking region south of Brussels, who made the trip to Carrefour to receive his vaccine dose." It's very practical.... " You don't need to wait two or three months for another jab." These vaccine units have been set up at several dif