@article{penha_zancan_almeida_berchieri_2017,  title={Protection of chickens against fowl typhoid using field vaccine programs formulated with the live attenuated strain Salmonella Gallinarum ΔcobSΔcbiA},  volume={84},  ISSN={1808-1657},  url={https://doi.org/10.1590/1808-1657000272015},  DOI={10.1590/1808-1657000272015},  journal={Arquivos do Instituto Biológico},  publisher={Instituto Biológico},  author={Penha, Rafael Antonio Casarin and Zancan, Fábio Tavares and Almeida, Adriana Maria de and Berchieri, Angelo},  year={2017} }