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Summaries
January
The number of isolates (n=131) confirmed this month showed an increase in comparison to the number of isolates confirmed in January 2024 (n=83). Salmonella Typhimurium ST19 and Typhimurium ST568 (18.1% and 6.2% in 2024 vs 19% in 2024) were the most common serotypes confirmed this month.
February
The number of isolates (n=81) confirmed this month showed a decrease in comparison to the number of isolates confirmed in February 2024 (n=86). Salmonella Typhimurium ST19 (27.9% in 2024 vs 17.3% in 2025) was the most common serotype confirmed this month. Uncommon Salmonella serotype confirmed this month was S. Indiana (16 human isolates since it was first confirmed in New Zealand in 1990)