Moderna had been awarded over $750 million to develop a vaccine against bird flu, which has been circulating in farm animals and sickening people.

The U.S. reported its first human death from H5N1 in Louisiana and awarded $306 million for avian flu response, including $176 million to Moderna for its mRNA-1018 vaccine candidate.

Moderna already has a bird flu vaccine in very early-stage testing that uses the same mRNA technology that allowed rapid development and rollout of vaccines to protect against COVID-19.

Moderna said its experimental mRNA-based flu vaccine produced a stronger immune response than a currently available shot for the virus in a late-stage trial. The positive data pave the way for ...

The Trump administration has canceled $766 million awarded to drugmaker Moderna Inc. to develop a vaccine against potential pandemic influenza viruses, including the H5N1 bird flu.