A study on the role of pigs and cattle as healthy carriers of salmonellae and other human enteric pathogens in the Philippines

ABSTRACT

After examining a total of 1,000 bile specimens from apparently healthy pigs, 22 (2.2%) were found positive not only for Salmonellae but also for other human enteric pathogens. Eighteen (1.8%) were positive for Salmonellea consisting of 6 serotypes, viz., S. anatum, S. javiana, S. weltevreden, S. Stanley, S. Derby and S. Newport. Three (0.3%) were positive for E. tarda, and 1 (0.1%) was positive for Providence group group of paracolon bacilli. Of the total 500 bile specimens from apparently healthy cattle axamined, 4 (0.8%) were found positive not only for Salmonellae but also for other human enteric pathogens. One (.2%) was positive for Salmonella (S. anatum), 1 (0.2%) was positive for a Providence group of paracolon bacilli, and 2 (0.4%) were positive for Alkalescens-Dispar. It is therefore concluded that pigs and cattle, like man, act as carriers of Salmonella and other human enteric pathogens with the organism localizing in the gall bladder