 In its early years, Winslow's Department of Public Health at Yale was a catalyst for public health reform in Connecticut, and the health surveys prepared by him and his faculty and students led to considerable improvements in public health organization.He also successfully campaigned to improve health laws in Connecticut, as well as for the passage of a bill that created the State Department of Public Health.Drawing on principles and expertise in existing departments at the School of Medicine to supplement public health courses, Winslow focused on educating undergraduate medical students in the context of preventive medicine.