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. 2017 Sep 1:37–52. doi: 10.1016/B978-0-12-803109-4.00004-0

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Copyright © 2017 Elsevier Inc. All rights reserved.

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Figure 4.14 — An ELISA can be used to determine the relative titer of a virus stock. The titer is expressed as the reciprocal of the highest dilution at produces a positive color.