Santa Clara County sheriffs are dealing with a spike in fentanyl overdoses at the Elmwood Correctional Facility in Milpitas.
The problem has been so bad in the last week, it has sent more than a dozen inmates and a handful of guards who were treating them, to the hospital.
Doctors say all are expected to make a full recovery.
Searches and welfare checks have been stepped up since the first cases were reported.
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