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Kim IJ, Gonzalez O, Tighe MP, Lanthier PA, Clark MJ, Travis KL, Low-Beer TC, Lanzer KG, Bernacki DT, Szaba FM, De La Barrera RA, Dussupt V, Mendez-Rivera L, Krebs SJ, Ross CN, Mdaki SD, Brasky KM, Layne-Colon D, Tardif SD, Thomas SJ, Modjarrad K, Blackman MA, Patterson JL. Protective efficacy of a Zika purified inactivated virus vaccine candidate during pregnancy in marmosets. NPJ Vaccines 2024; 9:35. [PMID: 38368443 PMCID: PMC10874403 DOI: 10.1038/s41541-024-00824-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 01/30/2024] [Indexed: 02/19/2024] Open
Abstract
Zika virus (ZIKV) infection during pregnancy poses significant threats to maternal and fetal health, leading to intrauterine fetal demise and severe developmental malformations that constitute congenital Zika syndrome (CZS). As such, the development of a safe and effective ZIKV vaccine is a critical public health priority. However, the safety and efficacy of such a vaccine during pregnancy remain uncertain. Historically, the conduct of clinical trials in pregnant women has been challenging. Therefore, clinically relevant animal pregnancy models are in high demand for testing vaccine efficacy. We previously reported that a marmoset pregnancy model of ZIKV infection consistently demonstrated vertical transmission from mother to fetus during pregnancy. Using this marmoset model, we also showed that vertical transmission could be prevented by pre-pregnancy vaccination with Zika purified inactivated virus (ZPIV) vaccine. Here, we further examined the efficacy of ZPIV vaccination during pregnancy. Vaccination during pregnancy elicited virus neutralizing antibody responses that were comparable to those elicited by pre-pregnancy vaccination. Vaccination also reduced placental pathology, viral burden and vertical transmission of ZIKV during pregnancy, without causing adverse effects. These results provide key insights into the safety and efficacy of ZPIV vaccination during pregnancy and demonstrate positive effects of vaccination on the reduction of ZIKV infection, an important advance in preparedness for future ZIKV outbreaks.
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Affiliation(s)
- In-Jeong Kim
- Trudeau Institute, Inc., Saranac Lake, NY, 12983, USA.
| | - Olga Gonzalez
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | | | | | | | | | | | | | | | - Frank M Szaba
- Trudeau Institute, Inc., Saranac Lake, NY, 12983, USA
| | - Rafael A De La Barrera
- Pilot Bioproduction Facility, Center for Enabling Capabilities, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Vincent Dussupt
- Emerging Infectious Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- U.S. Military HIV Research Program, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, 20817, USA
| | - Letzibeth Mendez-Rivera
- Emerging Infectious Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- U.S. Military HIV Research Program, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, 20817, USA
| | - Shelly J Krebs
- Emerging Infectious Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- U.S. Military HIV Research Program, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, 20817, USA
| | - Corinna N Ross
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Stephanie D Mdaki
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
- Science and Technology, Joint Base San Antonio-Fort Sam AFB, San Antonio, TX, 78236, USA
| | - Kathleen M Brasky
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Donna Layne-Colon
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Suzette D Tardif
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Stephen J Thomas
- Institute for Global Health and Translational Sciences, State University of New York, Upstate Medical University, Syracuse, NY, 13210, USA
| | - Kayvon Modjarrad
- Emerging Infectious Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- Pfizer Inc. Vaccine Research and Development, Pearl River, NY, 10965, USA
| | | | - Jean L Patterson
- Southwest National Primate Center, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA.
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