About the Authors

Krista Kuuliala

krista.kuuliala@helsinki.fi

Affiliation Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Antti Kuuliala

Affiliation Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Riitta Koivuniemi

Affiliation Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Suvi Oksanen

Affiliation Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Mari Hämäläinen

Affiliation Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland

Eeva Moilanen

Affiliation Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland

Hannu Kautiainen

Affiliations Primary Health Care, Helsinki University Hospital and University of Helsinki, Helsinki, Finland, General Practice, Helsinki University Hospital and University of Helsinki, Helsinki, Finland, Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland

Marjatta Leirisalo-Repo

Affiliations Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland, Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Heikki Repo

Affiliation Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KK AK MLR HR. Performed the experiments: KK AK RK SO MH EM MLR. Analyzed the data: KK AK EM HK MLR HR. Contributed reagents/materials/analysis tools: MH EM MLR HR. Wrote the paper: KK AK RK SO MH EM HK MLR HR.