Jerominski is one of an estimated 155,000 pharmacists working at chain drugstores who, over the past decade, have found themselves pushed to do more with less. They're working faster, filling more orders and juggling a wider range of tasks with fewer staff members at a pace that many say is unsustainable and jeopardizes patient safety. Now Covid-19 vaccinations are raising new concerns about what will happen if they aren't given enough additional support for yet another responsibility.