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Cryo-EM images of glutaraldehyde-fixed HTNV particles. Examples of the three classes of virions observed in Holey Carbon grids by cryo-EM are presented. (A) Examples of round HTNV particles are indicated by a white triangle. The Asterix denotes an irregular shaped, crumpled ball. (B) An example of a tubular particle, which were those with their length at least twice their diameter. (C) An example of an irregular particle with a hybrid of round and tubular portions. Scale bar = 50 nm.
