BALTIMORE (AP) -- Baltimore health officials say a hot water heater is to blame for sickening workers at an office complex.
City health officials also say the Johns Hopkins at Keswick administrative complex can reopen Thursday. Testing found a hot water heater in the south building of the complex was identified as a source of nitrates and nitrites, which can cause the symptoms reported by employees in the building. Those symptoms include dizziness, nausea, difficulty breathing and vomiting.
The was closed to its more than 1,000 employees Wednesday, a day after one of the two buildings was evacuated after several people reported feeling ill.
The Baltimore City Health Department says 17 employees were treated and released Tuesday at emergency rooms. Two more employees reported symptoms Wednesday.
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