A commercial red tilapia farm was diagnosed with Streptococcus agalactiae infection using histopathology, microbiology and immunohistochemistry. One hundred fish were randomly taken from different weight/age groups including broodstock, market fish (larger than 150 g), on-growing fish between 20 and 150 g, juveniles and larvae. Fish were clinically examined, anaesthetised and necropsied. Sample...

The r6le of the beta-hemolytic Streptococcus in the etiology of rheumatic fever has attracted considerable attention for the last twenty or more years. Although epidemiological studies, particularly those indicating a high incidence of streptococcic pharyngitis preceding first attacks or recurrences of rheumatic disease., have furnished highly suggestive evidence of the importance of this organ...

Abstract Various emerging and re‐emerging diseases, such as streptococcosis, tilapia lake virus disease infectious spleen kidney necrosis disease, have had a significant economic impact on the industry over last decade. These diseases resulted in high levels of morbidity mortality, production losses trade restrictions. In absence effective husbandry management, prevention strategies appropriate...