EFSA: Salmonella in EU turkey flocks

30-10-2008 | |
EFSA: Salmonella in EU turkey flocks

EFSA’s Task Force on Zoonoses Data Collection has published an analysis of risk factors related to Salmonella in flocks of turkeys within the European Union (EU).

The report “Part B – Factors related to Salmonella prevalence in turkey flocks” highlights how in the case of turkeys reared for human consumption, the so-called fattening turkeys, farms with a greater number of birds are at higher risk of Salmonella infection.

Increasing risk of infection

Free-range flocks, including organic turkeys are also more likely to become infected with Salmonella than flocks reared indoors. The raising of fattening flocks along with flocks kept for breeding purposes also increases the risk of infection. Moreover, infections in fattening flocks are most often observed between October and December, when production peaks in many countries. Vaccination proved to play a role in preventing Salmonella infections in the flocks.

Six member states highlighted

Among breeding turkeys, those flocks found to be positive to Salmonella were all concentrated in six Member States only; and the patterns of these infections closely reflect the farming characteristics of these Member States.

Salmonella in turkeys and humans

Also, the general distribution of Salmonella types in turkey flocks show different patterns than in Salmonella cases in humans. This may imply that the role of turkeys as a source of Salmonella infections in humans is more limited than that of other poultry, such as laying hens for egg production and broiler chickens. However, the Task Force stressed that there is proven infectivity of some Salmonella types affecting turkeys and that the risk for humans should not be overlooked.

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Kinsley
Natalie Kinsley Freelance journalist