It wasn't just the caffeine that gave a Cedar Rapids, Iowa woman an extra jolt when she had her morning cup of coffee. It was the bat she found in the coffee filter.

Officials with the Iowa Department of Public Health say the woman reported seeing a bat in her house, but wasn't overly worried about it. She turned on her automatic coffee maker before she went to bed and had her coffee the next morning.

She discovered the bat in the filter of the coffee maker when she went to clean it out that night. The woman, who wasn't identified, underwent treatment for rabies.

The bat was sent to a state lab for testing, but its brain was too cooked by the heat of the brewing water to determine if it had rabies.