Madeley C R
J Infect Dis. 1979 May;139(5):519-23. doi: 10.1093/infdis/139.5.519.
Astroviruses and caliciviruses may both be observed in the feces of babies by electron microscopy and are two of the viruses whose relationship to infantile diarrhea is still being established. Although similar in size and in their star-shaped surface configurations, they differ in detailed structure. The astrovirus has a round unbroken edge, a six-pointed star with a white center, and surface hollows that are triangular. The calicivirus has a feathery edge, a six-pointed star with a dark hollow in the center (Star-of-David) appearance), and surface hollows that appear round or oval. Because only a minority of the virions of both viruses exhibit a completely characteristic structure, careful searching may be necessary to distinguish between the two viruses.
通过电子显微镜检查可在婴儿粪便中观察到星状病毒和杯状病毒，它们是两种与婴儿腹泻的关系仍在确定中的病毒。尽管它们在大小和星形表面结构上相似，但在详细结构上有所不同。星状病毒有一个圆形的完整边缘、一个中心为白色的六角星以及呈三角形的表面凹陷。杯状病毒有一个羽状边缘、一个中心有深色空洞（类似大卫之星外观）的六角星以及呈圆形或椭圆形的表面凹陷。由于这两种病毒只有少数病毒粒子呈现出完全特征性的结构，可能需要仔细查找才能区分这两种病毒。
