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.
The most common cause of traumatic brain injury involves automobile or motor vehicle accidents (accounting for nearly of all TBI cases). The second leading cause of traumatic brain injury deaths is from firearm-related occurrences. The second leading cause of non-fatal brain injury occurs when someone falls. While falls can occur in everyday life (such as with unsafe equipment or surfaces), the most common instance is during sports-related activities.