Food Safety Matters

Ep. 211. Kathy Sanzo: The Implications of FDA's Synthetic Food Dye Phase-Out

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Feb 10, 2026
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ANECDOTE

Ingredient Traceback Linked To Infant Botulism

  • FDA testing linked infant botulism cases to organic whole milk powder in one supplier chain.
  • Whole genome sequencing matched isolates from ingredient, finished formula, and clinical cases.
ANECDOTE

Equipment Flaw Ended Long Listeria Problem

  • A Norwegian smoked-salmon plant hunted Listeria for 11 weeks using targeted sampling and whole genome sequencing.
  • They ultimately replaced a hygienically flawed skinning machine to stop persistent contamination.
INSIGHT

WGS Changed Listeria Investigations

  • Whole genome sequencing transformed outbreak resolution by identifying persistent strains and harborage sources.
  • WGS prevents repeated relocation of contaminated equipment that would otherwise spread problems.
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