Lowell Animal Control Officer Darlene Wood told WBZ NewsRadio 1030 there have been 15 confirmed cases of the canine parvovirus in the past two weeks.
One man was dead at the scene and the other later died at Lowell General Hospital.
The murder took place during an alleged robbery.
Fire investigators have returned to the scene of a fire in Lowell that claimed the lives of seven people, and will begin looking for a cause.
Jon Keller ponders whether fire sprinklers are worth the price.
On Branch Street in Lowell, there were candles and prayers for the seven people who died in the fire.
Seven people were killed in a fire that tore through a three-story apartment building in Lowell on Thursday.
Five people were transported to the hospital but there is no word on their conditions.
Police have arrested the driver they say left the scene of a deadly crash involving a pedestrian last week.
Police have identified the victim in a fatal Lowell hit-and-run, and seized the vehicle that allegedly struck the man, but have not yet made an arrest.