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. 2011 Dec 15;25(2):400–424. doi: 10.1093/shm/hkr162

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© The Author 2011. Published by Oxford University Press on behalf of the Society for the Social History of Medicine. All rights reserved

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Fig. 2 — Etaples Filter-passer. Etaples workers' virus in Noguchi cultures at (1) 3 days' growth, (2) 5 days' growth, (3) 7 days' growth. The culture material was inoculated into guinea pigs and monkeys.

Source: Bradford, Bashford and Wilson 1919b, p. 307.