About the Authors

Lisa Sanguinetti

Affiliations Novartis Vaccines and Diagnostics, Siena, Italy, Dipartimento di Biologia Molecolare, Università degli Studi di Siena, Siena, Italy

Simona Toti

Affiliation Istituto Nazionale di Statistica, Rome, Italy

Valerio Reguzzi

Affiliation Novartis Vaccines and Diagnostics, Siena, Italy

Fabio Bagnoli

Affiliation Novartis Vaccines and Diagnostics, Siena, Italy

Claudio Donati

claudio.donati@novartis.com

Affiliation Novartis Vaccines and Diagnostics, Siena, Italy

Competing Interests

FB and CD are employees of Novartis Vaccines and Diagnostics. LS and VR were employees of Novartis Vaccines and Diagnostics at the time of the study.

Author Contributions

Conceived and designed the experiments: LS ST VR CD. Performed the experiments: LS VR CD. Analyzed the data: LS ST VR CD. Wrote the paper: LS ST VR FB CD.