The first human death due to bird flu in the US has been reported in Louisiana, involving a patient over 65 with underlying conditions. The patient contracted H5N1 from exposure to backyard and wild birds.

The death in Louisiana — involving a person with underlying health conditions — is the first human case in the United States linked to exposure to backyard birds, according to the federal Centers for Disease Control and Prevention.

Shares of vaccine makers including Moderna, Novavax and CureVac rose Tuesday after U.S. health officials confirmed the first American death caused by the H5N1 bird flu. Moderna and Novavax shares rose more than 10%,