RT Journal Article SR Electronic T1 Development of a potent Zika virus vaccine using self-amplifying messenger RNA JF Science Advances JO Sci Adv FD American Association for the Advancement of Science SP eaba5068 DO 10.1126/sciadv.aba5068 VO 6 IS 32 A1 Luisi, Kate A1 Morabito, Kaitlyn M. A1 Burgomaster, Katherine E. A1 Sharma, Mayuri A1 Kong, Wing-Pui A1 Foreman, Bryant M. A1 Patel, Sonal A1 Fisher, Brian A1 Aleshnick, Maya A. A1 Laliberte, Jason A1 Wallace, Madison A1 Ruckwardt, Tracy J. A1 Gordon, David N. A1 Linton, Christine A1 Ruggiero, Nicole A1 Cohen, Jessica L. A1 Johnson, Russell A1 Aggarwal, Kunal A1 Ko, Sung-Youl A1 Yang, Eun Sung A1 Pelc, Rebecca S. A1 Dowd, Kimberly A. A1 O’Hagan, Derek A1 Ulmer, Jeffrey A1 Mossman, Sally A1 Sambor, Anna A1 Lepine, Edith A1 Mascola, John R. A1 Pierson, Theodore C. A1 Graham, Barney S. A1 Yu, Dong YR 2020 UL http://advances.sciencemag.org/content/6/32/eaba5068.abstract AB Zika virus (ZIKV) is the cause of a pandemic associated with microcephaly in newborns and Guillain-Barre syndrome in adults. Currently, there are no available treatments or vaccines for ZIKV, and the development of a safe and effective vaccine is a high priority for many global health organizations. We describe the development of ZIKV vaccine candidates using the self-amplifying messenger RNA (SAM) platform technology delivered by cationic nanoemulsion (CNE) that allows bedside mixing and is particularly useful for rapid responses to pandemic outbreaks. Two immunizations of either of the two lead SAM (CNE) vaccine candidates elicited potent neutralizing antibody responses to ZIKV in mice and nonhuman primates. Both SAM (CNE) vaccines protected these animals from ZIKV challenge, with one candidate providing complete protection against ZIKV infection in nonhuman primates. The data provide a preclinical proof of concept that a SAM (CNE) vaccine candidate can rapidly elicit protective immunity against ZIKV.