Simian immunodeficiency virus (SIV) is a species of retrovirus that cause persistent infections in at least 45 species of non-human primates.

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2018年8月7日 · The figure above is a reconstruction of a single SIV virus particle, imaged using cryo-electron tomography. Individual envelope glycoprotein spikes are colored in purple, the viral membrane is colored green, and the core is colored orange. Full-size image: Download (0.4MB)