6/12 U.S. Human infections follow predictable patterns:
• 41 cases from dairy cattle contact (B3.13)
• 24 cases from poultry exposure (D1.1)
• 5 cases from unknown sources
U.S. Case fatality rate: 1.43% (much lower than historical H5N1, but still concerning for pandemic virus)
#HumanCases #Zoonosis
7/8 70 confirmed human cases since 2024, mostly mild infections in farmworkers.
But scientists worry: continuous circulation in mammals could lead to mutations making the virus more adapted to human receptors.
#HumanCases
9/15 The United States has recorded 66 human H5N1 cases since tracking began in 2022, with one death in January 2025. While human-to-human transmission hasn't occurred, researchers fear viral evolution could enable airborne spread.
#HumanCases #TransmissionRisk #ViralAdaptation
👩⚕️ Public Health Risks:
Human cases are rare but serious, especially for farmworkers.
Symptoms range from mild to severe, with no human-to-human transmission yet.
Stay informed to stay safe. #HumanCases #OccupationalRisks
9/9 Canada reported its first domestic human case in November 2024—a B.C. teenager hospitalized for two months. While person-to-person transmission remains rare, the government purchased 500,000 vaccine doses for high-risk workers.
www.burnabynow.com/national-new...
#HumanCases #PreventiveMeasures
Angie: “I spoke with Ben Mueller @nytimes.com about the #H5N1 sequences from the severely ill case in Louisiana.
The specific mutations don't concern me as much as the increase in #humancases around the country coupled with a surge in #seasonalflu. Short thread on why 👇
t.co/vdfYN0whAC”
A total of 1,123
#H5N1, #H5N6, #H9N2, and #H7N9 #humancases have been collected in #China
➡️ from 2011 to 2024.
1) Factors including #density of #pig and density of #human #population emerged as
www.frontiersin.org/journals/pub...
