but right now many shelves still remain empty. cnn's adrienne broaddus is live for us at a supermark net chicago. what are you seeing there? >> reporter: good morning, brianna. if you take a look on aisle 4, everything is in stock except for when you get to this section of the aisle. that's when you notice the emptiness. there are three cans here of similac advanced. if you're in the chicago area, we're on the city's far south side in the beverly neighborhood. this family-owned grocery store, county fair, they have been in business for 58 years. but the fact that they have some cans of formula here is rare. the manager tells me they received a shipment last friday. but they already have been notified they won't be able to get another shipment for some time. and if you drive around town, not only here in chicago, but across the country, parents are frantically searching, looking for formula.