01 / The world before
Severe diarrhoea could rapidly cause dangerous dehydration.
02 / The discovery
Oral rehydration therapy uses water, salts and glucose to replace losses.
03 / The people
Physiologists, clinicians and community health workers.
04 / The obstacles
Delivery and access matter as much as the formula.
05 / The world after
A practical treatment became part of child-health response.
06 / Why it still matters
Training and clean supplies keep it effective.