About the Authors

Frank Schwab

frank.schwab@charite.de

Affiliations Institute of Hygiene and Environmental Medicine, Charité - University Medicine Berlin, Berlin, Germany, National Reference Centre for Surveillance of Nosocomial Infections, Berlin, Germany

Petra Gastmeier

Affiliations Institute of Hygiene and Environmental Medicine, Charité - University Medicine Berlin, Berlin, Germany, National Reference Centre for Surveillance of Nosocomial Infections, Berlin, Germany

Elisabeth Meyer

Affiliations Institute of Hygiene and Environmental Medicine, Charité - University Medicine Berlin, Berlin, Germany, National Reference Centre for Surveillance of Nosocomial Infections, Berlin, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FS PG EM. Performed the experiments: FS PG EM. Analyzed the data: FS. Wrote the paper: FS PG EM.