Attribution-Share Alike 4.0 truetrue English Beta-haemolytic colonies of Streptococcuspyogenes on 5% shhep blood agar object has role: photographer author name
Attribution 2.0 truetrue 7 April 2012 English Spanish Hemolysis - Streptococcuspyogenes (Lancefield Group A) on Columbia Horse Blood Agar - detail Flickr