The U.S. will rebuild a stockpile of bird flu vaccines for poultry that match the strain of the virus circulating in commercial flocks and wild birds, the Department of Agriculture said on Wednesday,

Moderna surged as investors turned eyed potential demand for a vaccine to protect against bird flu after the US reported its first death from the virus.

The United States has reported its first human death from H5N1 bird flu, marking a somber moment in the ongoing outbreak of the virus. The Louisiana Department of Health announced in a statement on Monday that a patient over the age of 65,

The U.S. has developed a bird flu vaccine that can be prepared when needed. It’s not currently available because health officials haven’t deemed it necessary.