As supermarkets frantically work to restock shelves and calm panicked shoppers, some stores are taking steps to protect older and vulnerable customers who may be at the greatest risk from the novel coronavirus. Most large US grocery chains are offering customers online pickup and delivery services to help limit shoppers' contact with other people. Many are also closing earlier to give employees more time to restock shelves and to clean and disinfect stores. Jersey City, New Jersey, announced on Monday that it is working with grocery stores there to provide special access to vulnerable customers -- including pregnant women. And the mayor of Lorain, Ohio, said that several stores in his city would be making special arrangements for seniors, CNN affiliate WJW reported.