Complex sentence: At the time of it's discovery in Pulaski County in 1994, rats and mice trapped along with the Prairie vole tested negative for the virus but did test positive for other hantaviruses.
Split into simpler sentences: At the time of it's discovery in Pulaski County in 1994. Rats and mice trapped along with the Prairie vole tested negative for the virus but did test positive for other hantaviruses.