Merck Sharp & Dohme Co. has reacquired the Cherokee Pharmaceutical plant that was previously sold to PRWT Services, Inc. more than two years ago. Details of the transaction were not disclosed. Sherri Kyle-Jones of PRWT Services said that PRWT sold Cherokee back to Merck “because of the challenging business environment in the pharmaceutical industry.” She added that PRWT decided to “concentrate on its core businesses involving labor management.” Under PRWT, Cherokee co...