About the Authors

Päivi Lahti

paivi.lahti@helsinki.fi

Affiliation Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland

Miia Lindström
Panu Somervuo
Annamari Heikinheimo
Hannu Korkeala

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PL HK ML PS AH. Performed the experiments: PL PS. Analyzed the data: PL PS ML HK. Contributed reagents/materials/analysis tools: PL AH PS. Wrote the paper: PL ML HK.