Characterization of Humoral Responses to Nipah Virus Infection in the Syrian Hamster Model of Disease.

Scholte, Florine E M; Rodriguez, Sergio E; Welch, Stephen R; Davies, Katherine A; Genzer, Sarah C; Coleman-McCray, JoAnn D; Harmon, Jessica R; Sorvillo, Teresa E et al. · J Infect Dis · 2024

basic_science · Level V

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Abstract

Nipah virus (NiV) is a highly pathogenic paramyxovirus. The Syrian hamster model recapitulates key features of human NiV disease and is a critical tool for evaluating antivirals and vaccines. Here we describe longitudinal humoral immune responses in NiV-infected Syrian hamsters. Samples were obtained 1-28 days after infection and analyzed by ELISA, neutralization, and Fc-mediated effector function assays. NiV infection elicited robust antibody responses against the nucleoprotein and attachment glycoprotein. Levels of neutralizing antibodies were modest and only detectable in surviving animals. Fc-mediated effector functions were mostly observed in nucleoprotein-targeting antibodies. Antibody levels and activities positively correlated with challenge dose.

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