I know that TWD TV show is regarded as another universe but it is still written by Kirkman. At the end of the first season there was a guy at the CDC who didn't manage to find a cure to the virus. As far as I recall his wife was bitten but he couldn't cure her, so they scanned her brain to see what happens during the transformation.
Once you're bitten it's game over. Unless you have the luck of being bitten on place that can be amputated.