Severe acute respiratory syndrome-related coronavirus is inhibited by interferon- alpha
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Current treatment schemes for severe acute respiratory syndrome (SARS) include broad-spectrum antibiotics, glucocorticoids, and ribavirin. We evaluated the susceptibility of the SARS-related coronavirus (SARS CoV) to ribavirin and interferon (IFN)- alpha in vitro by use of cytopathic effect, plaque assay, and immunoblot analysis. Ribavirin did not inhibit viral growth at concentrations attainable in human serum. In contrast, IFN- alpha showed an in vitro inhibitory effect starting at concentrations of 1000 IU/mL. In conclusion, ribavirin alone is unlikely to be beneficial in the prophylaxis or treatment of SARS CoV infections. Clinical trials with IFN- alpha might be justified to determine a beneficial effect on the outcome of SARS.
xmlui.dri2xhtml.METS-1.0.item-identifier-citationH. J Infect Dis. 2004 Apr 1;189(7):1164-7. Epub 2004 Mar 12.
University of NairobiDepartment of Medical Microbiology, University of Manitoba,