病毒是一类特殊的微生物,它不象细菌、放线菌、真菌等一般微生物那样有细胞结构。平常寄生在人、动物、植物和细菌里。它是具有固定形状的极微小的有机体,所以只有把它放在电子显微镜下放大好几万倍才能看到它的真面目。病毒的形态多种多样,有球形的,杆形的,还有蝌蚪形的。病毒的外壳是蛋白质,核心是核酸。构成球形外壳的蛋白质,其分子连接方式犹如人的60只左手的形状,以张开的手之间,指 Viruses are a special type of microorganism. They do not have cell structures like bacteria, actinomycetes, fungi, and other general microorganisms. Usually parasitic in humans, animals, plants and bacteria. It is a very tiny organism with a fixed shape, so it can only be visually magnified by tens of thousands of times under an electron microscope. The forms of the virus are various, spherical, rod-shaped and cocoon-shaped. The shell of the virus is a protein and the core is a nucleic acid. The proteins that make up the spherical shell have a molecular connection that resembles the 60 left-handed shapes of humans, with the open hand between the fingers.