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.
What is the leading cause of accident? Environmental, material, human number one cause of all auto accidents in the US - distracted drivers. get off the cell phone, stop texting, put the makeup away and set the sâ¦oda down and quit tuning the radio and reading the newspaper and and and pay attention to the road.
Most boating accidents occur at the end of the day when environment, and drinking can induce bad judgement. The number one cause of fatalities in boating accidents is capsizing. It is normally the result of improper loading or overloading, but also can be caused by other things such as foul weather. When a boat capsizes the occupants should stay with the boat.