Human Salmonella Isolates, 2010 No. 9, September

Saturday 21st September 2019


Summary

  • The number of isolates (n=129) showed an increase in comparison with September 2009 (n = 83). Salmonella Typhimurium phage type RDNC-May 06 (22 in September 2010, 5 in September 2009) was the predominant serotype this month. Uncommon New Zealand serotypes identified this month included S. Emek (13 human isolates since 2000). Salmonella Typhimurium phage type 2 was isolated for the first time in New Zealand. No recent overseas travel reported.
  • During the month of August 2010, the Enteric Reference Laboratory confirmed 7 human isolates of Salmonella Brandenburg, 6 of which were from the South Island (2009: 1 human case). Ten human isolates were confirmed this month (9 from the South Island) in comparison to 6 in September 2009.
  • A increase in numbers of S. Typhimurium RDNC-May 06 has been observed since July in the Auckland region in comparison with 2009. This month a total of 22 isolates were confirmed, 19 of which were in the North Island (8 in Auckland) in comparison with 5 isolates in September 2009 (all in the North Island, 1 from Auckland).
  • An outbreak of Salmonella Typhimurium phage type 155 was reported in South Canterbury. The common food source was the mousse filling of two chocolate cakes (made to order) purchased from a South Canterbury café. The mousse filling contained uncooked egg whites. The eggs were from a small supplier who does not have a Risk Management Program. New Zealand Food Safety Authority was informed.

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Human Salmonella Isolates, 2010 No. 9, September

 

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Human Salmonella Isolates, 2010 No. 9, September

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