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.
Motorcycle Accidents: Common Causes. Motorcycle speeding, lane splitting, and other common factors causing motorcycle accidents. by Kathleen Michon, J.D. Motorcycle accidents, though not necessarily more frequent than other types of accidents, are more likely to result in serious injury or death.