GREENCASTLE,Ind. (WISH) – Prison and health officials said Tuesday the H1N1 virus was to blame for one death and about 40 people becoming ill at Putnamville Correctional Facility.

H1N1 made headlines in 2009 for making many people in Indiana sick. It’s a strain of influenza commonly referred to as swine flu.

Putnamville Correctional officials said 35 inmates became ill, as well as five or six staff members of the facility.

Those who became especially ill had complications due to MRSA, health officials said. The one inmate who died was 35 years old and developed both MRSA and pneumonia. Family members asked that his name not be released.

Of the 35 inmates who became ill, only three received a flu shot. Officials said the flu shot was optional to inmates. It’s now being offered again.

Inmates with symptoms were being given Tamiflu.