The CDC confirmed the first US-based severe human case of H5N1 bird flu in Louisiana in December. The Louisiana Department of Health reported Monday that the patient had died. The LDH revealed that the patient was over age 65,

The bird flu, also known as avian influenza and H5N1, was implicated in the first human death from the infectious disease on January 6. But still, no human-to-human transmission has been reported.

The patient, who was older than 65 and had underlying medical conditions, was hospitalized weeks ago in critical condition with severe respiratory illness.