Infectious Diseases 2021

Infectious Diseases 2021

Causes for routine Salmonella monitoring false-positive test results

Microorganisms 2021, 9, 2215 28 November, 2021

The Salmonella monitoring program, as outlined in the EU Commission regulation 200/2010, asks for repeated sampling in order to ascertain progress in achievement of the EU target. According to Article 2.2.2.2.c of this regulation, the competent authority may decide to do a resample and retest when it has reasons to question the results of initial testing.
In the Netherlands, the competent authorities have been resampling and retesting all initial positive samplings for several years because of doubts about false positive initial test results in breeging farms. An analysis of population data in the period 2015–2019 indicates that 48% of initial samplings at the farm were classified as false positive after resampling and retesting by the competent authorities.
A new study is currently being published in Microorganisms, and is an insight into a population estimate of false positive diagnostic results during Salmonella monitoring of Dutch poultry breeding flocks.

 

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