FLORSTADT, April 5 --  Medicines can stop pain, fight cancer and save lives but are worthless if they get lost in the mail, spoil in a hot warehouse or are stuck on a ship.

This is where pharmaceutical logistics comes in-a fast-growing sector in a world where key supply chains have been shaken by war, pandemic and trade chaos.

One of its European hubs is what Germany's DHL calls its health logistics campus near Frankfurt, dedicated to ensuring drugs and other crucial medical products reliably get to where they're needed.

As fears of medicine shortages grow amid the five-week-old Middle East war, its task is to ensure steady shipments to hospitals, pharmacies, labs and other customers across Europe and worldwide.

The company's fac...