MADISON, Wis. (AP) -- About two weeks after a bat emerged on a Wisconsin-to-Georgia flight, health officials say the passengers they've contacted so far won't need to take preventative rabies measures.

The Centers for Disease Control and Prevention said Wednesday about 40 of the 50 passengers have been reached, and none had a level of contact with the bat that would require a rabies vaccination.

On Aug. 5, the bat flitted around the cabin of a Delta Air Lines flight.
The Atlanta-bound flight returned to Madison after it emerged. It eventually escaped, so no one knows whether it was rabid.

CDC spokesman Tom Skinner says health officials are discussing whether to visit the Madison airport. He says there have been reports of dead bats and bat colonies there that investigators may want to study.

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