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,

The risk to the general population from H5N1 bird flu remains low, a World Health Organization spokesperson said on Tuesday, following the first death of a patient from the virus in the United States.

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 first bird-flu related death has been reported in the US, according to the Louisiana department of health, where the death occurred. The patient had been taken to hospital after contracting a major strain of bird flu,