本文报道了在患“红肉病”文蛤组织中发现的 3种病毒样颗粒。 1种主要存在于鳃上皮下的结缔组织中 ,呈球形或椭球形 ,大小 (5 0～ 6 0 ) nm× (5 0～ 110 ) nm,无囊膜包裹。另 1种为球形 ,直径 16 0～ 180 nm,有囊膜 ,存在于外套膜上皮细胞及结缔组织细胞质中。第 3种存在于消化盲囊上皮细胞质内 ,为无囊膜包裹的球形病毒样颗粒 ,直径为 5 0～ 80 nm。 This article reports three virus-like particles found in the “red meat disease” clam tissue. One kind of connective tissue mainly exists in the subepithelial connective tissue, spherical or ellipsoid, size (5 0 ~ 60) nm × (50 ~ 110) nm, without capsule encapsulation. The other is a spherical, diameter 16 0 ~ 180 nm, a capsule, present in the mantle epithelium and connective tissue cytoplasm. The third species exists in the cytoplasm of the digestive blind cyst and is a non-enveloped, globular virus-like particle with a diameter of 50-80 nm.