PINELLAS COUNTY, Fla. —  State health officials are investigating a death and possible cases of Legionnaires’ disease at an elementary school.

According to Spectrum Bay News 9’s partner newspaper the Tampa Bay Times, a 61-year-old Kindergarten teacher at Pasadena Fundamental Elementary died Nov. 24 after being in intensive care for four days.

State health officials said the teacher, Katherine Pennington, tested positive for legionella, the bacteria that causes Legionnaires’ disease.

Legionnaires’ disease is a serious form of pneumonia that causes fever, headache, muscle ache and shortness of breath, according to the Centers for Disease Control and Prevention.

It can impact current and former smokers and people with compromised breathing or other underlying conditions more severely.

It is generally spread from moisture particles from cooling towers, showers, faucets, spas, hot tubs and fountains.

The school’s principal said students in the impacted building will take classes in another part of the school while repairs are made to the air conditioning system.

As many as seven classrooms may be impacted.

Officials said the district is waiting on test results of air samples from the building.