3.4.22.8 Vacuolating, lethal, collagenase and clostripain activities of six reference ATCC Clostridium histolyticum strains Hathewaya histolytica ATCC 17860 3.4.22.8 Vacuolating, lethal, collagenase and clostripain activities of six reference ATCC Clostridium histolyticum strains Hathewaya histolytica ATCC 19401