The document discusses Marc Koska's invention of a new syringe design intended to prevent the reuse of syringes and reduce disease transmission. Koska was motivated to create a new syringe after learning that 1.3 million people die each year from diseases spread through needle injections using unsterilized syringes. His new syringe design automatically retracts the needle after use, making it impossible to reuse and preventing the spread of diseases like HIV/AIDS, especially in developing nations where syringe reuse is common due to lack of resources. Koska has now set up multiple factories worldwide to produce the new syringes at low cost.