New Zealand: Salmonella and Campylobacter foodborne illness data - 2023
Salmonella: During 2023, 827 individual cases (15.8 per 100,000 population) of salmonellosis were reported in New Zealand. Of the 218 hospitalised cases (4.2 hospitalised cases per 100,000 population) recorded in 2023, 161 cases were reported with salmonellosis as the principal diagnosis and 57 were reported with salmonellosis as another relevant diagnosis. In 2023, isolates from 827 notified cases with non-typhoidal Salmonella infections were typed by the ESR Enteric Reference Laboratory. S. Typhimurium (237 cases) and S. Enteritidis (92 cases) were the most common serotypes identified.
Campylobacter: During the past several years, both the total number of human campylobacteriosis cases and rates per 100,000 population have been consistently decreasing, albeit slowly. During 2023, 6089 individual cases (116.6 cases per 100,000 population) of campylobacteriosis and no resulting deaths were reported. Of the 989 hospitalised cases (18.9 hospitalised cases per 100,000 population) recorded in 2023, 803 cases were reported with campylobacteriosis as the principal diagnosis and 186 were reported with campylobacteriosis as another relevant diagnosis.
