About the Authors

Eva Alonso

Affiliation Department of Epidemiology, Subdirección de Salud Pública de Bizkaia, Gobierno Vasco, Bilbao, Bizkaia, Spain

Idoia Lopez-Etxaniz

Affiliation Department of Epidemiology, OSALAN- Instituto Vasco de Seguridad y Salud Laborales, Barakaldo, Bizkaia, Spain

Ana Hurtado

Affiliation Department of Animal Health, NEIKER- Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain

Paloma Liendo

Affiliation Department of Microbiology, Hospital Universitario de Basurto, Bilbao, Bizkaia, Spain

Felix Urbaneja

Affiliation Department of Epidemiology, OSALAN- Instituto Vasco de Seguridad y Salud Laborales, Barakaldo, Bizkaia, Spain

Inmaculada Aspiritxaga

Affiliation Department of Epidemiology, Subdirección de Salud Pública de Bizkaia, Gobierno Vasco, Bilbao, Bizkaia, Spain

Jose Ignacio Olaizola

Affiliation Department of Epidemiology, OSALAN- Instituto Vasco de Seguridad y Salud Laborales, Barakaldo, Bizkaia, Spain

Alvaro Piñero

Affiliation Department of Animal Health, NEIKER- Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain

Iñaki Arrazola

Affiliation Department of Agriculture, Diputación Foral de Bizkaia, Bilbao, Bizkaia, Spain

Jesús F. Barandika

Affiliation Department of Animal Health, NEIKER- Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain

Silvia Hernáez

Affiliation Department of Microbiology, Hospital Universitario de Basurto, Bilbao, Bizkaia, Spain

Nerea Muniozguren

Affiliation Department of Epidemiology, Subdirección de Salud Pública de Bizkaia, Gobierno Vasco, Bilbao, Bizkaia, Spain

Ana L. García- Pérez

agarcia@neiker.net

Affiliation Department of Animal Health, NEIKER- Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Bizkaia, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EA FU I. Arrazola ALG. Performed the experiments: PL JFB AP SH JIO FU. Analyzed the data: IL I. Aspiritxaga NM AH. Contributed reagents/materials/analysis tools: I. Arrazola ALG EA. Wrote the paper: AH EA.