The Centers for Disease Control reports 19 people died in the deadly fungal meningitis outbreak.
That is an additional four deaths. A total of 245 have been infected.
Federal investigators raided the New England Compounding Center in Boston to search the facilities.
It is the pharmacy that made contaminated steroids linked to the outbreak.
Federal investigators said more issues have been reported with drugs produced by the company.
The center recalled all its drugs, and said it is cooperating with authorities.