About the Authors

Jonna Jalanka-Tuovinen

Contributed equally to this work with: Jonna Jalanka-Tuovinen, Anne Salonen

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Anne Salonen

Contributed equally to this work with: Jonna Jalanka-Tuovinen, Anne Salonen

anne.salonen@helsinki.fi

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Janne Nikkilä

Current address: Finnish Red Cross Blood Service, Helsinki, Finland

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Outi Immonen

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Riina Kekkonen

Affiliation Research & Development, Valio Ltd, Helsinki, Finland

Leo Lahti

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Airi Palva

Affiliation Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland

Willem M. de Vos

Affiliations Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland, Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands

Competing Interests

One of the authors (RAK) is employed by a commercial company (Valio Ltd). This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, and the content of this paper was neither influenced nor constrained by that fact.

Author Contributions

Conceived and designed the experiments: JJ-T AS JN WMdV. Performed the experiments: OI JJ-T. Analyzed the data: JJ-T AS JN LL. Contributed reagents/materials/analysis tools: AP RAK JN LL WMdV. Wrote the paper: AS JJ-T JN WMdV.