About the Authors

Francesco Berlanda Scorza

Current address: Novartis Vaccines and Diagnostics, Siena, Italy

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Anna Maria Colucci

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Luana Maggiore

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Silvia Sanzone

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Omar Rossi

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Ilaria Ferlenghi

Affiliation Novartis Vaccines and Diagnostics, Siena, Italy

Isabella Pesce

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Mariaelena Caboni

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Nathalie Norais

Affiliation Novartis Vaccines and Diagnostics, Siena, Italy

Vito Di Cioccio

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Allan Saul

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Christiane Gerke

christiane.gerke@novartis.com

Affiliation Novartis Vaccines Institute for Global Health, Siena, Italy

Competing Interests

The authors have read the journal’s policy and have the following conflicts: Francesco Berlanda Scorza, Anna Maria Colucci, Luana Maggiore, Silvia Sanzone, Omar Rossi, Isabella Pesce, Mariaelena Caboni, Vito Di Cioccio, Allan Saul, and Christiane Gerke are or were at the time the study was conducted employees of Novartis Vaccines Institute for Global Health, Siena, Italy. Ilaria Ferlenghi and Nathalie Norais are employees of Novartis Vaccines and Diagnostics, Siena, Italy. The submitted work is included in the patent applications ‘Hyperblebbing Shigella strains’ WO/2011/036564 and ‘Purification of bacterial vesicles’ WO/2011/036562 submitted by Novartis Vaccines Institute for Global Health. 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: FBS AMC SS NN VDC AS CG. Performed the experiments: FBS AMC LM SS OR IF IP MC VDC. Analyzed the data: FBS LM SS OR IF IP CG. Contributed reagents/materials/analysis tools: IF NN. Wrote the paper: FBS CG.