Figure 7
The process begins with two starting points: “Routine Vaccine” and “Emergency Vaccine.” For “Routine Vaccine,” the first decision diamond asks “Shipping Route Available?” If “yes,” the process moves to a second decision: “Vaccine Storage Equipped on Vessel?” If “yes,” the delivery method is “Vaccine Delivery via Route Shipping.” If “no,” the delivery defaults to “Vaccine Delivery via Direct Shipping.” If the initial decision “Shipping Route Available?” is “no,” the delivery also defaults to “Vaccine Delivery via Direct Shipping.” For “Emergency Vaccine,” the process moves to the decision “Air Transport Available?” If “yes,” the delivery method is “Vaccine Delivery via Air Transport.” If “no,” it defaults to “Vaccine Delivery via Direct Shipping.”Schematic of decision process for distributing vaccines to a remote island. Source: Created by authors