In The Chosen Rashel is referred to as the infamous Cat, and Batman and Catwoman are given a Shout-Out. Guess who she falls in love with? It also alludes to her status as a shapeshifter.
It's mentioned that adults very rarely survive being transformed into made vampires; they'll either just die or become a ghoul if they botch it too badly. One wonders how many times vampires tried and failed turning adults into vampires for them to figure this out. Furthermore, it's a widely established fact that teens and children usually have successful transformations, which raises questions around vampires actively trying numerous times to turn kids into vampires. And if they were unsuccesful, they'd potentially end up as child ghouls.