Infectious Diseases 2018

Infectious Diseases 2018

EU: Prevalence of the Salmonella-positive laying hen flocks in laying flocks -2017

16 December, 2018

All MS and three non-MS reported Salmonella National Control Programmes data for laying hen flocks. Salmonella was found in 3.70% (or 1,361) of the flocks, compared with 3.71% in 2016. The prevalence of flocks positive for any of the two target serovars was 1.11% (410 flocks), compared with 1.44% in 2016. So, 30.1% (410 out of 1,361) of reported Salmonella-positive laying hen flocks were positive for target serovars. Six MS and two non-MS reported no single flock positive for target serovars.
The flock prevalence was higher for S. Enteritidis (0.89%) as compared with S. Typhimurium (0.22%). There was a decrease in the number of laying hen flocks positive for S. Enteritidis (327 in 2017 and 434 in 2016) although the number of tested flocks increased by 2% (36,811 in 2017 and 35,950 in 2016).