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. Walker, crutches, cane, wheelchair, lift equipment, hospital beds, commodes, goniometer, traction units, ultrasound machine, electrical stimulation machines, iontophoresis, vasopneumatic pump, cuff weights, pulley weights, isokinetic exercise equipment, and general office equipment (telephone, computer, facsimile machine, and copier).