About the Authors

Evelyn Mohler

Affiliations Swiss Tropical and Public Health Institute, Basel, Switzerland, University of Basel, Basel, Switzerland

Patrizia Frei

Affiliations Swiss Tropical and Public Health Institute, Basel, Switzerland, University of Basel, Basel, Switzerland

Jürg Fröhlich

Affiliation Laboratory for Electromagnetic Fields and Microwave Electronics, ETH Zürich, Zürich, Switzerland

Charlotte Braun-Fahrländer

Affiliations Swiss Tropical and Public Health Institute, Basel, Switzerland, University of Basel, Basel, Switzerland

Martin Röösli

martin.roosli@unibas.ch

Affiliations Swiss Tropical and Public Health Institute, Basel, Switzerland, University of Basel, Basel, Switzerland

the QUALIFEX-team

For a list of the members of the QUALIFEX-team please see the Acknowledgments section.

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MR CBF. Performed the experiments: EM PF. Analyzed the data: EM PF MR. Contributed reagents/materials/analysis tools: EM PF JF MR. Wrote the paper: EM PF JF CBF MR. Maintained and calibrated the measurement devices: JF. Contributed to the interpretation of the data analysis: EM PF JF CBF MR.