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Chimeric Polioviruses That Include Sequences Derived from Two Independent Antigenic Sites of Foot-and-mouth Disease Virus (FMDV) Induce Neutralizing Antibodies Against FMDV in Guinea Pigs

Overview
Journal J Virol
Date 1991 Jun 1
PMID 1709696
Citations 16
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Abstract

Five poliovirus recombinants containing sequences corresponding to foot-and-mouth disease virus (FMDV) antigenic sites were constructed. Viable virus was recovered from four of these plasmids, in which the VP1 beta B-beta C loop (antigenic site 1) of poliovirus type 1 Sabin had been replaced with sequences derived from the VP1 beta G-beta H loop (antigenic site 1) of FMDV O1 Kaufbeuren (O1K), chimera O1.1 (residues 141 to 154), chimera O1.2 (residues 147 to 156), and chimera O1.3 (residues 140 to 160) or from the beta B-beta C loop of VP1 (antigenic site 3) in chimera O3.1 (residues 40 to 49). One chimera (O1.3) was neutralized by FMDV-specific polyclonal serum and monoclonal antibodies directed against antigenic site 1 of FMDV. Chimeras O1.3 and O3.1 induced site-specific FMDV-neutralizing antibodies in guinea pigs. Chimera O1.3 was capable of inducing a protective response against FMDV challenge in some guinea pigs.

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