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The SARS-CoV ferret model in an infection-challenge study.

Abstract：

:Phase I human clinical studies involving therapeutics for emerging and biodefense pathogens with low incidence, such as the severe acute respiratory syndrome coronavirus (SARS-CoV), requires at a minimum preclinical evaluation of efficacy in two well-characterized and robust animal models. Thus, a ferret SARS-CoV model was evaluated over a period of 58 days following extensive optimization and characterization of the model in order to validate clinical, histopathological, virological and immunological endpoints. Ferrets that were infected intranasally with 10(3) TCID50 SARS-CoV showed higher body temperature (2-6 d.p.i.), sneezing (5-10 d.p.i.), lesions (5-7 d.p.i.) and decreased WBC/lymphocytes (2-5 d.p.i.). SARS-CoV was detected up to 7 d.p.i. in various tissues and excreta, while neutralizing antibody titers rose at 7 d.p.i. and peaked at 14 d.p.i. At 29 d.p.i., one group was challenged with 10(3) TCID50 SARS-CoV, and an anamnestic response in neutralizing antibodies was evident with no detectable virus. This study supports the validity of the ferret model for use in evaluating efficacy of potential therapeutics to treat SARS.

journal_name

Virology

journal_title

Virology

authors

Chu YK,Ali GD,Jia F,Li Q,Kelvin D,Couch RC,Harrod KS,Hutt JA,Cameron C,Weiss SR,Jonsson CB

doi

10.1016/j.virol.2007.12.032

subject

Has Abstract

pub_date

2008-04-25 00:00:00

pages

151-63

issue

1

eissn

0042-6822

issn

1096-0341

pii

S0042-6822(07)00845-8

journal_volume

374

pub_type

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