What make KomodoDragon's bite deadful even though it does not have any poisonous venom?

The Komodo Dragon is a large species of lizard that is only found on a islands in the Indonesian.   The Komodo Dragon is an enormous reptile that can grow up to three meters long and weigh 150kg . By flicking it's tongue out of its mouth, the Komodo Dragon is able to taste scent particles in the air to locate both live and dead prey up to 8km away.  They are also known to be excellent swimmers, travelling from one island to another over a relatively long distance.   The Komodo Dragon then chase it's victim with incredible speed and force. Although the majority of initial attacks are successful, if the animals somehow manages to escape then the bacteria transferred from the Komodo Dragon's mouth in the bite causes the flesh to become septic and kills the prey within 24 hours.  The immense size of the Komodo Dragon is thought to come from the fact that they would have once hunted large mammals that would have then existed in Indonesia, including a species of Pygmy Elephant which is thought to have now been extinct for thousands of years.  Despite having slow and docile nature, Komodo Dragons can run at speeds of up to 11mph for short distance and are actually one of the world's known man-eaters.