[Gameplay] Poppy W Stops Elise Venomous Bite but still takes damage

Venomous Bite: " Elise dashes to the target enemy and bites them" Using Poppy's W 'Steadfast Presence' I interrupted an Elise mid Venomous Bite, she failed to reach melee range but I still took the damage. Confirmed in my death log that the attack had hit.