BIOLOGICAL CHARACTERIZATION OF BACTERIOPHAGES AGAINST STREPTOCOCCUS AGALACTIAE.

Streptococcus agalactiae, also known as group B streptococci, was first isolated from cow's milk with mastitis, and it was first identified in 1930 by Rebecca Lancefield. GBS or streptococcus agalacticae is a gram-positive cocci, beta-hemolytic, facultative anaerobic, which is a harmless inhabitant of the normal human microflora. About 30% of the population is an asymptomatic carrier of this microbe.