ETIDIOH - NEW

{Excerpts} -- Five confirmed cases of influenza A(H5) were reported to CDC this week .  -- To date, human-to-human transmission of influenza A(H5) virus has not been identified in the United States . Three of these cases were reported by the California Department of Public Health. The cases occurred in workers aged ≥18 years at commercial dairy cattle farms in an area where highly pathogenic avian influenza (HPAI) A(H5N1) viruses had been detected in cows. The individuals had mild symptoms , which they reported to local health department officials. There have now been 37 total confirmed cases and one probable case in California during the 2024-2025 influenza season. One case was reported by the Wisconsin Department of Health. This case occurred in an individual aged ≥18 years who worked at a poultry facility where HPAI A(H5N1) virus had been identified in birds. This individual developed respiratory symptoms during Week 50 . Specimens were collected from the individual and initiall...

{Excerpt, edited} Exposure Source [ State -  Exposure Associated with Commercial Agriculture and Related Operations: Dairy Herds (Cattle) Poultry Farms and Culling Operations - Other Animal Exposure† - Exposure Source Unknown‡ - State Total ] 1) California -  35 - 0 - 0 - 1 -  36 2) Colorado -  1 - 9 - 0 - 0 -  10 3) Iowa -  0 - 1 - 0 - 0 -  1 {+1} 4) Louisiana -  0 - 0 - 1 - 0 -  1 5) Michigan -  2 - 0 - 0 - 0 -  2 6) Missouri -  0 - 0 - 0 - 1 -  1 7) Oregon -  0 - 1 - 0 - 0 -  1 8) Texas -  1 - 0 - 0 - 0 -  1 9) Washington -  0 - 11 - 0 - 0 -  11 10) Wisconsin -  0 - 1 - 0 - 0 -  1 -- Source Total -  39 - 23 - 1 - 2 -  65 {+1} NOTE : One additional case was previously detected in a poultry worker in Colora...

The Iowa Department of Health and Human Services (Iowa HHS) is reporting the first human case of avian influenza A(H5) in the state .  The individual was exposed to infected poultry while working with a commercial flock in northwest Iowa .  The individual reported mild symptoms , has received appropriate treatment and is recovering .  The case was identified through testing at the State Hygienic Laboratory and confirmed by the Centers for Disease Control and Prevention (CDC). As of December 20, 2024, the CDC has reported 64 confirmed human cases of H5 HPAI across nine states. The majority of the exposures are linked to infected poultry or dairy cows.  There is no evidence that human-to-human transmission of influenza A(H5) is occurring in the U.S. Although human infections are rare{!} , the virus is spread through prolonged exposure around infected flocks and herds, through the eyes, nose or mouth. Any individuals with direct contact who develop flu-like symptoms or ...