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.
In facts traffic collisions are the leading cause of preventable deaths in our country. Thus it is important to have an understanding as to the leading factors contributing to car accidents. A list of the leading causes of traffic accidents in provided below. 1. Speeding While Driving and Reckless Driving: Failing to follow the speed limit is the most common cause of traffic accidents in the United States. 2. Use of Mobile Phone â Texting While Driving: The proliferation of mobile phone use has resulted an increased level of danger on our roads.