ESCANABA, Mich. (Michigan News Source) – Federal government officials are spending some time at the Billerud paper mill in Escanaba testing employees and conducting sampling after a fungal infection sicked more than 100 people and killed one.

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The National Institute for Occupational Safety and Health (NIOSH) is meeting with employees, offering voluntary urine antigen tests, and gathering data from work and health questionnaires. Officials say the questionnaire will help them determine the factors that increase workers’ risk for infection from the blastomycosis outbreak.

Investigators are also collecting indoor dust, soil, and organic material like wood chips, since that’s where the fungus lingers. Blastomycosis is not spread from person to person.

In addition, fungal disease experts from the Centers for Disease Control and Prevention (CDC) are assisting NIOSH, state officials, and local health agencies.

Public Health Delta and Menominee Counties (PHDM) has identified 104 confirmed and probable cases. One person has died.

The Billerud plant has been shut down for cleaning. Employees are still being paid.