01 / The world before
Contaminated food could spread disease through supply chains.
02 / The discovery
Microbiology, testing and standards improved hazard control.
03 / The people
Laboratories, inspectors, producers and public-health teams.
04 / The obstacles
Global supply chains introduce changing risks.
05 / The world after
Safer handling reduces avoidable illness.
06 / Why it still matters
Every kitchen and distribution route is part of food safety.