Streptococcus suis in Pigs and Environs

Streptococcus suis has been reported as the most causative agent of streptococcal infection of pigs and humans among the pig farmers in Nigeria, although the common reservoir of this infection is not really specified. This study was carried out to x-ray the cross-sectional study of S. suis among pigs and environs. A total of 430 samples were drawn from different sources (nasal swab, pork, pig droppings, pig feeds, bioaerosol), and screened for the presence of Streptococcus suis using standard microbiological techniques. The isolates obtained were characterized using their morphological and biochemical characteristics. The study revealed the presence of Streptococcus suis Q, Streptococcus suis R, Streptococcus suis S and Streptococcus suis Y, of which the isolates were significantly (α˂0.05) seen most in nasal swab samples whereas the isolates were seen least in pig feed samples. Streptococcus suis Q was most significantly (α˂0.05) seen among the samples whereas S. suis R was seen least. From the study, S. suis was seen in the studied samples and it was harbored most in nasal samples, and S. suis Q was seen most in the studied samples.