The results suggest that the substances in the membrane-coated, electron-lucent granules in eosinophilic cells may be the key factor in the envenomation by Stingrays.

• 嗜酸性细胞内的电子密度低的膜包分泌颗粒成分可能是造成螫伤剧痛及全身症状的关键因素。