Summary of H5N1 Human Cases

Health officials reported six additional human cases of H5N1 bird flu in the United States, with five cases in California and one in Oregon. This marks Oregon's first known infection.

Investigation and Reporting Delays

A seventh potential case from California is under investigation by the CDC. All reported cases have been mild, primarily affecting individuals in direct contact with infected livestock.

Reassurance from Health Officials

California's state epidemiologist indicated that the surge in cases is due to reporting processes, not an outbreak. There is no evidence of human-to-human transmission.

Treatment and Recovery

The individual infected in Oregon has recovered after treatment with oseltamivir, and preventive treatment was given to their household members.

CDC Monitoring and Findings

Since March, the CDC has recorded 52 H5N1 infections in the U.S. The majority are connected to dairy cattle and poultry.

Environmental Monitoring and Public Health Response

California has detected H5N1 in 21 out of 28 wastewater sites tested, suggesting environmental contamination. Cities are responding with vigilance to the risk.