AN ACR B757 HIT UNFORECAST SEVERE TURB AND SEVERAL PAX WERE INJURED. THE PAX WERE TREATED BY DOCTORS AND A NURSE ON BOARD AND THE FLC DIVERTED TO DEN TO SEEK FURTHER MEDICAL CARE FOR SOME OF THE PAX.

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WE WERE AT CRUISE IN SMOOTH AIR FLYING BTWN WIDELY SCATTERED TSTM CELLS. THE FLT PLAN INDICATED ZERO FOR TURB IN THE AREA. WE ENCOUNTERED A 10 SECOND PATCH OF UNEXPECTED SEVERE TURB; FOLLOWED BY SMOOTH AIR AGAIN. THE AUTOPLT DISENGAGED; BUT SINCE WE WERE GUARDING THE FLT CTLS ONLY A MINOR ALTDEV OCCURRED. WE RE-ESTABLISHED ALT AND THE AUTOPLT; THEN CALLED THE CABIN. WE WERE INFORMED OF PAX INJURIES. WE INFORMED ZMP OF SEVERE TURB ENCOUNTER. WE THEN DECIDED TO DIVERT TO DEN. THERE WERE 3 MEDICAL DOCTORS AND A NURSE ONBOARD WHO IMMEDIATELY VOLUNTEERED AND TREATED THE INJURED PAX. WE DECLARED A MEDICAL EMER WITH ATC; COORDINATED WITH DISPATCH FOR MEDICAL PERSONNEL AND AMBULANCES TO MEET US AND EXPEDITED TO DEN. THE CABIN CREW DID AN OUTSTANDING JOB OF CALMING THE PAX; EQUIPPING AND DIRECTING THE MEDICAL PEOPLE; ASSESSING THE SIT AND COMMUNICATING WITH THE COCKPIT. THE DEN GND PERSONNEL ALSO DID AN OUTSTANDING JOB; ON VERY SHORT NOTICE; OF GETTING MEDICAL TEAMS IN PLACE AND BEING READY TO HANDLE ALL THE SUBSEQUENT PAX PROBS.