Group B Streptococcus stayed in a hotel.

Streptococcus is a kind of bacteria, some of which can cause human diseases. Streptococcus can be divided into different categories according to their different properties. According to the C-polysaccharide antigen of streptococcus, it can be divided into 20 groups, in which group A is the most common cause of human diseases, and group B streptococcus can also cause some human diseases, such as neonatal septicemia or meningitis. Group B streptococcus has certain hemolysis, mostly hemolytic type B. On the culture medium of this bacterium, a 2-4 mm ring with clear boundary can be seen around the colony. This ring is colorless and transparent, which is called type B hemolysis .. If it is hemolysis A, this ring will appear grass green, also called grass green streptococcus. Generally, hemolysis A did not appear in group B, only hemolysis B appeared, and occasionally some people did not have hemolysis ring.