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.
First of all, it should be noted that the accidents at Chernobyl and Fukushima have different causes. The causes of the accident at Chernobyl NPS are described above. The accident at the Fukushima NPS is due to loss of cooling reactors and ponds for spent nuclear fuel (Strishov, 2011). The earthquake destroyed the system of stationary power supplies of NPS.