This case is part of a broader outbreak, with 37 instances tied to dairy herds, 21 to poultry farms, and two with unknown exposure sources.
Genetic Insights and Spread of the Virus
Genomic analysis of the Louisiana patient revealed the D1.1 genotype of the H5N1 bird flu virus. This genotype has been detected in recent poultry and wild bird cases in the U.S., as well as human cases in Canada and Washington. It differs from the B3.13 genotype responsible for outbreaks in poultry and dairy cows. While the CDC continues further sequencing, it emphasizes that there is no evidence of human-to-human transmission and assures that the general public’s health risk remains low.
States of Emergency and Expanded Measures
In response to the outbreak, California Governor Gavin Newsom declared a state of emergency after the
