Sanofi also noted that the proposed license would require it to pay milestone and royalty payments back to the government, and its exclusive license would not prevent other companies—such as GlaxoSmithKline, Takeda, and Moderna, which also had all struck their own Zika vaccine partnerships with U.S. agencies—from bringing competing products to market, and allow for robust competition in the market for Zika vaccines. [101] However, with both partners continuing to be attacked in the media, in September 2017, Sanofi announced it would "not continue development of, or seek a license from, the Walter Reed Army Institute of Research for the Zika vaccine candidate at this time." [102] This is yet another case wherein certain policymakers' insistence on pricing requirements stifled innovation and the potential for a firm to bring a promising innovation to market.