EVALUATING ENVIRONMENTAL HEALTH INVESTIGATIONS: LESSONS FROM THE 2017 LISTERIOSIS OUTBREAK LINKING TO 2024 CHEMICAL FOOD POISONING IN SOUTH AFRICA. ICOPH [Internet]. 2026 May 15 [cited 2026 Jun. 20];10(01):74-87. Available from: https://proceedings.tiikmpublishing.com/index.php/icoph/article/view/1826