There is considerable evidence in man to indicate that bacteria ascend from the bladder to the kidney within the lumen of the ureter, thereby accounting for the principal pathway by which bacteria reach the kidney to produce pyelonephritis.`8 Although much is known about factors that permit the establishment of bacteria infection in the kidney, very little is known about the circumstances that ...

in this study, we performed a bacteriological investigation on bovine respiratory infections. additionally, the study evaluates the efficacy of florfenicol 30 µg produced by rooyan darou company (test group) as compared to a similar drug produced by aboraihan company (control group). sampling was carried out on 30 calves at two farms with 30-55% incidence rate of respiratory disorders. nasophar...

Numerous bacteriological studies have been made clinically of the periapical region, but unfortunately the findings of the teeth have been inadequately correlated with the bacteriological results. Moreover, the emphasis has been placed on pulpless teeth or on those showing periapical roentgenological changes; studies made on normal teeth have been comparatively few. This made difficult an evalu...