About the Authors

Monica Moschioni

monica.moschioni@novartis.com

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Morena Lo Sapio

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Giovanni Crisafulli

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Giulia Torricelli

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Silvia Guidotti

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Alessandro Muzzi

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Michèle A. Barocchi

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Claudio Donati

Affiliation Research Center, Novartis Vaccines and Diagnostics, Siena, Italy

Competing Interests

All the authors of the manuscript are or were (at the time the work presented in the manuscript was performed)employed at Novartis Vaccines and Diagnostics. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MM CD MAB. Performed the experiments: MM MLS GC CD. Analyzed the data: MM MLS GC CD. Contributed reagents/materials/analysis tools: AM SG GT. Wrote the paper: MM CD MAB.