“The world’s first commercial drone delivery service is in Rwanda, and it’s delivering blood. The service is operated by Zipline, a US robotics and drone company. The drones drop blood parcels on parachutes outside remote health centers. Rwanda’s government pays Zipline for the deliveries, each of which costs about the same as the motorbike deliveries used previously, according to Keller Rinaudo, Zipline’s CEO. (The company declined to say how much that was, saying it would defer to the government to release the figure.)”
Source: The World’s First Commercial Drone Delivery Service Has Launched in Rwanda – Nextgov.com