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【标题】:Vaccines. An Ebola whole-virus vaccine is protective in nonhuman primates
【作者】:Marzi, A.; Halfmann, P.; Hill-Batorski, L. (...)
【来源】:Science, 2015, 348(6233), 439-442
【摘要】:Zaire ebolavirus is the causative agent of the current outbreak of hemorrhagic fever disease in West Africa. Previously, we showed that a whole Ebola virus (EBOV) vaccine based on a replication-defective EBOV (EBOVDeltaVP30) protects immunized mice and guinea pigs against lethal challenge with rodent-adapted EBOV. Here, we demonstrate that EBOVDeltaVP30 protects nonhuman primates against lethal infection with EBOV. Although EBOVDeltaVP30 is replication-incompetent, we additionally inactivated the vaccine with hydrogen peroxide; the chemically inactivated vaccine remained antigenic and protective in nonhuman primates. EBOVDeltaVP30 thus represents a safe, efficacious, whole-EBOV vaccine candidate that differs from other EBOV vaccine platforms in that it presents all viral proteins and the viral RNA to the host immune system, which might contribute to protective immune responses. |
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