Rabbit Anti-Staphylococcus type 4 Group B Polyclonal antibody for Agg. Streptococcus is a genus of spherical, Gram-positive bacteria of the phylum Firmicutes.?Streptococcus agalactiae?is a gram-positive streptococcus characterized by the presence of Group B Lancefield antigen, and so takes the name Group B Streptococcus. Inf