Durability and correlates of vaccine protection against Zika virus in rhesus monkeys

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Science Translational Medicine  13 Dec 2017:
Vol. 9, Issue 420, eaao4163
DOI: 10.1126/scitranslmed.aao4163

Patience pays off

As an individual may not encounter the pathogen for years after they have been vaccinated, efficacious vaccines typically require induction of long-lasting immunity. Abbink and colleagues vaccinated nonhuman primates with one of several candidate Zika virus vaccines and then waited an entire year before conducting a viral challenge. These vaccines had all shown promising results in previous experiments with a more immediate challenge, but here, one vaccine faltered, likely due to waning antibodies. The researchers performed more experiments to suggest that circulating antibodies are mediating protection for these vaccines. These results are useful for Zika virus vaccine development and instructive for vaccine development in general.

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