Thin Blood

The term thin-blooded is primarily used to refer to Caitiff and vampires of the last generations.
In the Final Nights, thin-blooded vampires are synonymous with vampires of the 14th and 15th generations. While only about half of 14th generation vampires have Thin Blood Syndrome, all 15th generation vampires do, making them the final generation.
For centuries the thin-blooded have been persecuted by elders, Gehenna cults, and other Noddists that fear their existence because Gehenna prophecies seem to indicate thin-blooded vampires are a sign of the End Times. While in previous centuries the Caitiff bore the brunt of this hatred, the upsurge of 14th and 15th generation Kindred has become a matter of great debate and concern, and has notably resulted in the return of the office of the Scourge in Camarilla cities.