REVERE – A bus driver may have suffered a stroke or other type of medical emergency causing him to careen out of control on Washington Avenue at 8 a.m. Thursday, authorities said.Fire Chief Eugene Doherty said the Route 119 Massachusetts Bay Transportation Authority bus hit two utility poles and at least two cars parked near St. Mary’s Church at Washington and Grover street, as well as a fire hydrant, a mailbox and the church’s front sign.The bus crossed the lawn of a home and came to rest against a guardrail.”It was sideways blocking the street and glass from a window was all over St. Mary’s lawn,” said Washington Avenue resident Vincent Camley.MBTA spokesman Joe Pesaturo said two passengers reported neck and back pain and were taken to Whidden Memorial Hospital in Everett. The 43-year-old driver was described as disoriented when medical personnel arrived. He was taken to Massachusetts General Hospital in Boston.”I don’t anticipate seeing any charges filed against the driver,” said Sgt. Jeff Graffe, head of the Revere Police Department Traffic Division.”He experienced some type of health-related problem,” Pesaturo said, adding the driver has worked for the MBTA for 22 years.Three Revere fire trucks, one from Malden, two ambulances and Revere police responded to the crash that backed up traffic on Washington and Malden. The roads near the accident remained closed through Thursday afternoon.The accident marks the second in as many weeks involving an MBTA bus driver who suffered a medical emergency with passengers on board before crashing. On Jan. 20, the Route 450 bus collided with a car southbound on the Lynn Marsh Road after the driver suffered a medical episode, specifically a “coughing attack,” according to Pesaturo.The driver in Thursday’s crash was not the same driver in the Jan. 20 accident, Pesaturo said.A Transit Police reconstruction team is investigating the accident.