This series focused on the most widespread zoonotic diseases in Iraq, Baghdad including three different studies; 1st study: concentration of heavy metals Pb,Cd,Zn and Cu, and the isolated bacteria in local and imported poultry in Baghdad city. 2nd study of bacterial isolation from 84 dog's fecal samples of different dogs. 3rd study: Chicken is widely identified as potential reservoirs and vectors of verity of foodborne infections such us Salmonella and E. coli.