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.
Simply not realizing limitations of your boating skill, not paying attention to the conditions, not looking out for other boaters or others in the water and/or lack of judgment are the major causes of PWC accidents. All of these are easily preventable by being cautious, using good judgment and staying alert.