As a result, during the Influenza ("the flu") season (September through April), the University Of Miami Miller School Of Medicine requires all employees who provide ongoing services to patients, work in a location (all Hospitals and clinics) where patient care is provided, or work in patient care or clinical care areas, to have an annual influenza vaccination. Holtz Children's Hospital, attached to Jackson Memorial Hospital, is one of the largest children's hospitals in the southeast United States, and is known worldwide for their team of pediatric specialists experienced in treating children with all types of needs, from routine care to life-saving procedures.