The outbreak has already caused the deaths of two inmates.
On May 3, 2008, over 100 prisoners were shot by guards at the prison resulting in the deaths of 36 inmates.
On the night of March 29, 2008, a riot broke out that caused the deaths of two inmates and left eleven inmates hospitalized.
An investigation has begun over the hanging deaths of two inmates at the Union County jail last week.
On April 14, 1971, a riot lasted four days and resulted in the death of two inmates and destruction of much of the prison.
The police operation ended with the deaths of 7 inmates and at least 17 injuries.
Officials of the Board of Correction are also looking into the deaths of at least three other inmates earlier this year.
The company's contract to provide prison health care in Massachusetts was not renewed in 1994 after the deaths of three female inmates.
In 1982 a deliberately lit fire led to the deaths of three inmates.
The team cuts power to Oz and violently retakes the cell block, resulting in the deaths of two inmates and six guards.
