The AVMA estimates there are 74 million pet cats in the U.S., but the number of feral felines is believed to reach as high as 150 million. Increased efforts to provide food and care to feral cats are putting humans at risk of exposure to rabies, according to CDC researchers. Veterinarian Jane Brunt says cats must be vaccinated against rabies as kittens, then one year later and at three-year intervals after that. Capturing and vaccinating feral animals frequently enough would be hard, according to veterinarian Charles Rupprecht of the Global Alliance for Rabies Control.
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