ATLANTA (CBS) – The Centers for Disease Control has a warning for deer hunters about tuberculosis. A report shared by the agency this month detailed how a man is believed to have contracted the disease in 2017 after dressing a deer.

The 77-year-old from Michigan had no known exposure to anyone with tuberculosis, but he had been regularly hunting and field-dressing deer for the past 20 years. There were also two hunting-related tuberculosis infections in the state in 2002 and 2004.

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Tests showed that the 77-year-old was exposed to mycobacterium bovis, which is found in deer, cattle, bison and elk. It’s believed that the bacteria can be inhaled while the deer is field-dressed.

Now the CDC is telling hunters to “use personal protective equipment while field-dressing deer.”

Deer-hunting season is getting underway in many parts of the country.

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In Massachusetts, youth deer hunt day is set for Saturday. Archery season begins Oct. 7, and shotgun season starts in December.