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.
Union Grove, WI. Union Grove is a village in Racine County, Wisconsin, United States. The population was 4,322 at the 2000 census. Union Grove is located at 42Â°41â²7â³N 88Â°2â²58â³W / 42.68528Â°N 88.04944Â°W / 42.68528; -88.04944 (42.685287, -88.049390). According to the United States Census Bureau, the village has a total area of 1.7 square miles (4.4 kmÂ²), all of it land.