期刊
NATURE COMMUNICATIONS
卷 8, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms15674
关键词
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资金
- OD, NIH [2 P40 OD012217, 2U42OD021458-15]
- NIAID [K22AI104794]
- RCMI [G12MD007600]
- NIGMS-RISE Program of UPR-Medical Sciences Campus [R25GM061838]
Zika virus (ZIKV) is a re-emerging virus that has recently spread into dengue virus (DENV) endemic regions and cross-reactive antibodies (Abs) could potentially affect ZIKV pathogenesis. Using DENV-immune serum, it has been shown in vitro that antibody-dependent enhancement (ADE) of ZIKV infection can occur. Here we study the effects of pre-existing DENV immunity on ZIKV infection in vivo. We infect two cohorts of rhesus macaques with ZIKV; one cohort has been exposed to DENV 2.8 years earlier and a second control cohort is naive to flaviviral infection. Our results, while confirming ADE in vitro, suggest that preexisting DENV immunity does not result in more severe ZIKV disease. Rather our results show a reduction in the number of days of ZIKV viremia compared to naive macaques and that the previous exposure to DENV may result in modulation of the immune response without resulting in enhancement of ZIKV pathogenesis.
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