Virucidal and Neutralizing Activity Tests for
Antiviral Substances and Antibodies.
Bio Protoc 2018;
8:e2855. [PMID:
34285972 DOI:
10.21769/bioprotoc.2855]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/26/2018] [Accepted: 05/15/2018] [Indexed: 11/02/2022] Open
Abstract
In a narrow definition, virucidal activity represents the activity by which to interact with and physically disrupt viral particles. In a broad definition, it includes the activity by which to functionally inhibit (neutralize) viral infectivity without apparent morphological alterations of the viral particles. The viral infectivity can be measured in cell culture system by means of plaque assay, infectious focus assay, 50% tissue culture infectious dose (TCID50) assay, etc. Morphologically, disruption of viral particles can be demonstrated by negative staining electron microscopic analysis of viral particles. In this article, we describe methods to assess virucidal activity in a broad definition.
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