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. 1974 Oct;14(4):957-64.
doi: 10.1128/JVI.14.4.957-964.1974.

Structure of infectious bursal disease virus

K Hirai, S Shimakura

Structure of infectious bursal disease virus

K Hirai et al. J Virol. 1974 Oct.

Abstract

Infectious bursal disease virus of chickens was purified, and its structure was examined by the negative-staining technique in the electron microscope. The buoyant density of infectious bursal disease virus in CsCl was found to be 1.34 g/cm(3). The morphological details suggest that the capsid of the virion consists of a single layer of 32 capsomeres arranged in 5:3:2 symmetry. The virion measured about 55 nm in diameter and had no envelope.

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