Background. Infection with Streptococcus pyogenes, a beta-hemolytic bacterium that belongs to Lancefield serogroup A, also known as the group A streptococci (GAS), causes a wide variety of diseases in humans.
Elm Grove is a village in Waukesha County, Wisconsin, United States. The population was 6,249 at the 2000 census. Elm Grove is located at 43Â°2â²52â³N 88Â°5â²12â³W / 43.04778Â°N 88.08667Â°W / 43.04778; -88.08667 (43.047662, -88.086750). According to the United States Census Bureau, the village has a total area of 3.3 square miles (8.4 kmÂ²), all of it land.
Elmhurst is located at 41Â°53â²32â³N 87Â°56â²38â³Wï»¿ / ï»¿41.892280Â°N 87.943762Â°Wï»¿ / 41.892280; -87.943762. According to the 2010 census, the city has a total area of 10.31 square miles (26.7 km 2), of which 10.25 square miles (26.5 km 2) (or 99.42%) is land and 0.06 square miles (0.16 km 2) (or 0.58%) is water.