About the Authors

Anja Petrov

Affiliation Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Insel Riems, Greifswald, Germany

Martin Beer

Affiliation Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Insel Riems, Greifswald, Germany

Sandra Blome

sandra.blome@fli.bund.de

Affiliation Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Insel Riems, Greifswald, Germany

Competing Interests

Martin Beer is an Academic Editor for PLOS ONE. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AP MB SB. Performed the experiments: AP. Analyzed the data: AP MB SB. Contributed reagents/materials/analysis tools: AP MB SB. Wrote the paper: AP MB SB.