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病毒性肝炎病原学对甲型肝炎病毒(HAV)的研究表明,HAV是25~28毫微米直径的立体对称的微小病毒。至于它所含的核酸,到底是
Viral hepatitis Etiology Studies on Hepatitis A virus (HAV) have shown that HAV is a sterically symmetrical parvovirus having a diameter of 25-28 nm. As it contains the nucleic acid, in the end is