According to the received reports, a small bottle of frozen tuberculosis sample accidentally dropped down and fell to the floor with its lid open.
Johns Hopkins said they were able to contain the vials and there are no risks to anyone who was present at the buildings.
"The Baltimore City Fire Department is actively investigating the possible release of a small amount of tuberculosis during transportation in an internal bridge between Cancer Research Building 1 and Cancer Research Building 2", a spokeswoman said, WBAL-TV reported.More news: Graeme McDowell: Grinds out a decent first round at Irish Open
Additionally, the frozen sample inside the tube was the equivalent of a "few drops", according to King.
"In fact, we have determined that there is actually no risk, zero risk to anybody involved". The AIDS-causing HIV virus weakens the immune system that it is unable to fight the tuberculosis bacteria, according to Mayo Clinic. The fire department sent a dozen vehicles and a hazmat squad to the location outside of the Johns Hopkins cancer research center.
Tuberculosis bacteria are spread through the air when an infected person coughs, sneezes or spits, and someone else can breathe in the bacteria and become sick. The disease is also considered extremely contagious.More news: Defending Champion Garbine Muguruza Knocked Out In Wimbledon 2nd Round
Sections of the streets around the hospital, one of America's most prestigious research hospitals, were closed on Thursday afternoon, and a hazardous material situation was reported by local media. "They just let us know it was a hazmat situation and kept us updated". Two buildings were evacuated, officials said. It has always been on the decline in the U.S. The Centers for Disease Control and Prevention says there were 9,272 U.S. cases in 2016. The incident initially prompted the evacuation of several buildings, but hospital officials now say no one is at risk of contracting the disease.
This is the second incident this year in Maryland involving tuberculosis bacteria.More news: 'It's Coming Home!' England fans get World Cup fever