Groups are determined by PRECIPITIN test, serologic test to measure a specific reaction between antigen (C carbohydrate, located in the cell wall) and antibody which results in a visible precipitate. Group A Streptococci (Streptococcus pyogenes) is among the most important human pathogens.
Answers.comÂ® is making the world better one answer at a time. Striking an object is the leading cause of pwc accidents on boats.
BP says the accident was caused by the failure of eight different safety systems that were meant to prevent this kind of incident: The cement at the bottom of the borehole did not create a seal, and oil and gas began to leak through it into the pipe leading to the surface.