A third Colorado teacher from the Cherry Creek School District died last weekend, and a coroner's office is investigating whether two of the educators had bacterial meningitis.

Willow Creek Elementary School physical education teacher Scott Nash died from unknown causes. Nash also coached freshman baseball at Cherry Creek High School in Greenwood Village.

"Scott has been an invaluable part of our Willow Creek community for the last two years, supporting students K-5 in our physical education program," Principal Mary Whitney said in a letter to parents. "He will undoubtedly be missed by students and staff alike."

The Cherry Creek School District told Fox News Digital Nash's death was not related to bacterial meningitis.

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Exterior of Willow Creek Elementary School

Willow Creek Elementary School physical education teacher Scott Nash died from unknown causes over the weekend. (Google Maps)

Eaglecrest High School's Integrated Learning Center in Aurora remains closed until Monday following the deaths of Maddie Schmidt and Judith Geoffroy last weekend. 

The Arapahoe County Public Health Department found that Schmidt's symptoms were consistent with meningitis, while Geoffroy's symptoms were unknown.

Both women worked at the ILC.

The Arapahoe County Coroner's Office told Fox News Digital the women's bodies are undergoing ancillary testing, and that the causes of their deaths will not be released until the tests are finalized.

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Exterior of Eaglecrest High School

Eaglecrest High School in Aurora, Colo. (Google Maps)

The school district is working closely with public health officials to ensure the community members are safe. Eaglecrest High itself was open this week, while its ILC remained closed.

"Arapahoe County Public Health will reach out directly to all staff members and families of students determined to be close contact," the district said in a statement. "Those individuals will be offered preventative antibiotics."

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Close-up of meningitis cells

A photomicrograph of mild meningitis with a hemorrhage and the presence of Bacillus anthracis in a case of fatal human anthrax. (Smith Collection/Gado/Getty Images)

Meningitis occurs when the brain and spinal cord's protective membranes are infected. A stiff neck, disorientation, high fever and severe headaches are all symptoms of bacterial meningitis.