| streptococcus agalactiae, an emerging pathogen for cultured ya-fish, schizothorax prenanti, in china. | streptococcus agalactiae (group b streptococcus) has emerged as an important pathogen that affects humans and animals, including aquatic species. s. agalactiae infections are becoming an increasing problem in aquaculture and have been reported worldwide in a variety of fish species, especially those living in warm water. recently, a very serious infectious disease of unknown aetiology broke out in ya-fish (schizothorax prenanti) farms in sichuan province. a gram-positive, chain-forming coccus wa ... | 2011 | 22146014 |