Direct link to the contracting documents on the government site:
https://www.grants.gov/web/grants/view-opportunity.html?oppId=300198

NIH has been busy. Is this gain of function?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8539214/

"To evaluate the safety and efficacy of this platform, we created a chimeric Zika virus (ZIKV) vaccine candidate..."
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"This work was partially supported by a DARPA grant