Outbreak of Salmonella enterica serotype Poona in infants linked to persistent Salmonella contamination in an infant formula manufacturing facility, France, August 2018 to February 2019

Euro Surveill. 2019 Mar;24(13):1900161. doi: 10.2807/1560-7917.ES.2019.24.13.1900161.

Abstract

We describe a Salmonella Poona outbreak involving 31 infant cases in France. Following outbreak detection on 18 January 2019, consumption of rice-based infant formula manufactured at a facility in Spain was identified as the probable cause, leading to a recall on 24 January. Whole genome sequencing analysis linked present outbreak isolates to a 2010-11 S. Poona outbreak in Spain associated with formula manufactured in the same facility, indicating a persistent source of contamination.

Keywords: France; Poona; Salmonella; outbreak; persistent contamination; powdered infant formula; whole genome sequencing.

MeSH terms

  • Disease Outbreaks / statistics & numerical data*
  • Female
  • Food Contamination / analysis*
  • France / epidemiology
  • Genome-Wide Association Study
  • Humans
  • Infant
  • Infant Formula / microbiology*
  • Male
  • Manufacturing and Industrial Facilities
  • Salmonella Food Poisoning / diagnosis
  • Salmonella Food Poisoning / epidemiology*
  • Salmonella Infections / diagnosis
  • Salmonella Infections / epidemiology
  • Salmonella enterica / classification
  • Salmonella enterica / genetics
  • Salmonella enterica / isolation & purification*
  • Serogroup
  • Serotyping
  • Spain
  • Whole Genome Sequencing