By developing an injectable form of Chaulmoogra oil, the chemist Alice Augusta Ball created the first treatment for Hansen's disease (leprosy).

The treatment was used up until the cure of leprosy was available.

Her findings were initially credited to someone else. Years after her death, her work was finally properly recognised.

Her name is now visible on the façade of the London School of Hygiene & Tropical Medicine (LSHTM) alongside other health and tropical medicine innovators.