About the Authors

Eero Lauhkonen

eero.lauhkonen@fimnet.fi

Affiliation Tampere Center for Child Health Research, Tampere University and University Hospital, Tampere, Finland

Petri Koponen

Affiliation Tampere Center for Child Health Research, Tampere University and University Hospital, Tampere, Finland

Juho Vuononvirta

Affiliations Department of Medical Microbiology and Immunology, Turku University, Turku, Finland, Department of Infectious Disease Surveillance and Control, National Institute for Health and Welfare, Turku, Finland

Johanna Teräsjärvi

Affiliations Department of Medical Microbiology and Immunology, Turku University, Turku, Finland, Department of Infectious Disease Surveillance and Control, National Institute for Health and Welfare, Turku, Finland

Kirsi Nuolivirta

Affiliation Seinäjoki Central Hospital, Seinäjoki, Finland

Jyri O. Toikka

Affiliations Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland, Department of Clinical Physiology, Turku University Hospital, Turku, Finland

Merja Helminen

Affiliation Tampere Center for Child Health Research, Tampere University and University Hospital, Tampere, Finland

Qiushui He

Affiliations Department of Medical Microbiology and Immunology, Turku University, Turku, Finland, Department of Infectious Disease Surveillance and Control, National Institute for Health and Welfare, Turku, Finland

Matti Korppi

Affiliation Tampere Center for Child Health Research, Tampere University and University Hospital, Tampere, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PK KN JOT MH QH MK. Performed the experiments: PK JV JT KN JOT. Analyzed the data: EL PK MK. Contributed reagents/materials/analysis tools: JOT MH QH MK. Wrote the paper: EL PK JV JT KN MH QH MK.