TY  - JOUR 
T1  - Protection of chickens against fowl typhoid using field vaccine programs formulated with the live attenuated strain Salmonella Gallinarum ΔcobSΔcbiA
JO  - Arquivos do Instituto Biológico
A1  - Penha, Rafael Antonio Casarin
A1  - Zancan, Fábio Tavares
A1  - Almeida, Adriana Maria de
A1  - Berchieri, Angelo
SN  - 1808-1657
UL  - 10.1590/1808-1657000272015
VL  - 84 
Y1  - 2017
PB  - Brazil 
ER  -