Do changes in STEC diagnostics mislead interpretation of disease surveillance data in Switzerland? Time trends in positivity, 2007 to 2016 Fischer, Fabienne Beatrice and Saucy, Apolline and Schmutz, Claudia and Mäusezahl, Daniel, Eurosurveillance, 25, 1900584 (2020), https://doi.org/10.2807/1560-7917.ES.2020.25.33.1900584