这个词是什么意思？
Spherical RNA viruses, in the order NIDOVIRALES, infecting a wide range of animals including humans. Transmission is by fecal-oral and respiratory routes. Mechanical transmission is also common. There are two genera: CORONAVIRUS and TOROVIRUS.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D003332 · MeSH 2026。
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