Simplify the following text for a Grade 8 native English-speaking person.
Original: In the US , practical research into using rabbit fever as a bioweapon took place in 1954 at Pine Bluff Arsenal , Arkansas , an extension of the Camp Detrick program .
Simplified: In the USA , practical research into using Tularemia as a bioweapon took place at Camp Detrick in the 1950s .