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Review
. 2020 Nov 30;12(12):1371.
doi: 10.3390/v12121371.

A Glimmer of Hope: Recent Updates and Future Challenges in Zika Vaccine Development

Affiliations
Review

A Glimmer of Hope: Recent Updates and Future Challenges in Zika Vaccine Development

Priscila M S Castanha et al. Viruses. .

Abstract

The emergence and rapid spread of Zika virus (ZIKV) on a global scale as well as the establishment of a causal link between Zika infection and congenital syndrome and neurological disorders triggered unprecedented efforts towards the development of a safe and effective Zika vaccine. Multiple vaccine platforms, including purified inactivated virus, nucleic acid vaccines, live-attenuated vaccines, and viral-vectored vaccines, have advanced to human clinical trials. In this review, we discuss the recent advances in the field of Zika vaccine development and the challenges for future clinical efficacy trials. We provide a brief overview on Zika vaccine platforms in the pipeline before summarizing the vaccine candidates in clinical trials, with a focus on recent, promising results from vaccine candidates that completed phase I trials. Despite low levels of transmission during recent years, ZIKV has become endemic in the Americas and the potential of large Zika outbreaks remains real. It is important for vaccine developers to continue developing their Zika vaccines, so that a potential vaccine is ready for deployment and clinical efficacy trials when the next ZIKV outbreak occurs.

Keywords: Zika virus; clinical trials; vaccine candidates; vaccine platforms.

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Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

Figures

Figure 1
Figure 1
Zika vaccine development. (A) Number of Zika vaccine candidates tested in preclinical studies using mice models and non-human primates, and in phase I and II clinical trials in humans; (B) phase I and II clinical trial sites. Created with BioRender.com.

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