• Science · Apr 2015

    Vaccines. An Ebola whole-virus vaccine is protective in nonhuman primates.

    • Andrea Marzi, Peter Halfmann, Lindsay Hill-Batorski, Friederike Feldmann, W Lesley Shupert, Gabriele Neumann, Heinz Feldmann, and Yoshihiro Kawaoka.
    • Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
    • Science. 2015 Apr 24;348(6233):439-42.

    AbstractZaire 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 (EBOVΔVP30) protects immunized mice and guinea pigs against lethal challenge with rodent-adapted EBOV. Here, we demonstrate that EBOVΔVP30 protects nonhuman primates against lethal infection with EBOV. Although EBOVΔVP30 is replication-incompetent, we additionally inactivated the vaccine with hydrogen peroxide; the chemically inactivated vaccine remained antigenic and protective in nonhuman primates. EBOVΔVP30 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.Copyright © 2015, American Association for the Advancement of Science.

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