| pcr detection and pfge genotype analyses of streptococcal clinical isolates from tilapia in china. | large-scale streptococcal outbreaks occurred continuously in tilapia farms of china from 2009 to 2011. the objective of this study was to characterize the prevalent strains of tilapia streptococci from the main cultured areas of china through species specific pcr and pulse field gel electrophoresis (pfge). a total of 105 prevalent strains were isolated from guangdong, guangxi, hainan and fujian provinces between 2006 and 2011, 85 of which were identified as streptococcus agalactiae while the res ... | 2012 | 22677479 |