The U.S. Department of Health and Human Services (HHS) has awarded Moderna a $590 million contract to expedite clinical trials for a potential bird flu vaccine. This investment comes amid growing concerns over the potential of the avian influenza (H5N1) to spark a pandemic if the virus mutates to allow efficient human-to-human transmission.
Moderna, known for its success in developing mRNA-based COVID-19 vaccines, will use its advanced mRNA technology to develop and test vaccines targeting H5N1 strains. mRNA technology allows for rapid adaptation to emerging variants, making it a critical tool in responding to fast-evolving threats like bird flu.

The funding will support Phase 2b/3 clinical trials, including large-scale manufacturing to ensure vaccine doses can be quickly distributed if needed. According to HHS, this proactive approach aims to bolster the country’s preparedness against potential public health emergencies.
Bird flu primarily affects poultry and wild birds, but recent cases of transmission to mammals have heightened the urgency for vaccine development. While human infections remain rare, the fatality rate for known cases of bird flu is alarmingly high, underscoring the need for readiness.
Moderna’s work aligns with the broader U.S. strategy to strengthen biodefense and pandemic preparedness by investing in cutting-edge vaccine platforms. This initiative reflects lessons learned during the COVID-19 pandemic, emphasizing the importance of early vaccine development and robust manufacturing capabilities.
If successful, Moderna’s vaccine could play a vital role in mitigating the impact of a bird flu outbreak, protecting public health, and reducing the economic and social disruptions caused by pandemics. This funding highlights the critical need for global vigilance and collaboration in combating infectious disease threats.