Last Wednesday, I panicked mid-shipping prep: I needed to send inactivated COVID-19 specimens to a lab 20km away, but I’d only grabbed a random zip-top bag—no proper specimen transportation bag in sight. My advisor’s warning hit fast: “A leak without a certified biohazard bag means wasted work, violations, and risk to couriers.” I rushed back to the lab, scrambling to sort through supplies, only to get stuck on basics: What’s the difference between a UN2814 bi...
