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Treatment with interferon-α2b and ribavirin improves outcome in MERS-CoV-infected rhesus macaques.

Abstract：

:The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) is of global concern: the virus has caused severe respiratory illness, with 111 confirmed cases and 52 deaths at the time of this article's publication. Therapeutic interventions have not been evaluated in vivo; thus, patient management relies exclusively on supportive care, which, given the high case-fatality rate, is not highly effective. The rhesus macaque is the only known model organism for MERS-CoV infection, developing an acute localized to widespread pneumonia with transient clinical disease that recapitulates mild to moderate human MERS-CoV cases. The combination of interferon-α2b and ribavirin was effective in reducing MERS-CoV replication in vitro; therefore, we initiated this treatment 8 h after inoculation of rhesus macaques. In contrast to untreated, infected macaques, treated animals did not develop breathing abnormalities and showed no or very mild radiographic evidence of pneumonia. Moreover, treated animals showed lower levels of systemic (serum) and local (lung) proinflammatory markers, in addition to fewer viral genome copies, distinct gene expression and less severe histopathological changes in the lungs. Taken together, these data suggest that treatment of MERS-CoV infected rhesus macaques with IFN-α2b and ribavirin reduces virus replication, moderates the host response and improves clinical outcome. As these two drugs are already used in combination in the clinic for other infections, IFN-α2b and ribavirin should be considered for the management of MERS-CoV cases.

journal_name

Nat Med

journal_title

Nature medicine

authors

Falzarano D,de Wit E,Rasmussen AL,Feldmann F,Okumura A,Scott DP,Brining D,Bushmaker T,Martellaro C,Baseler L,Benecke AG,Katze MG,Munster VJ,Feldmann H

doi

10.1038/nm.3362

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

1313-7

issue

10

eissn

1078-8956

issn

1546-170X

pii

nm.3362

journal_volume

19

pub_type

杂志文章

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