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.
Such losses severely impact operational readiness. Recreational mishaps, after motor vehicle mishaps, are the leading cause of death for off-duty Navy personnel. Approximately 15 drowning occur each year during recreational activities. Falls are the second leading cause of death. Team sports produce more injuries than any other recreational activity. Many recreational mishaps report alcohol as a contributing factor; nearly all involve human error.