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Flu

WHO’s flu vaccine composition recommendations

March 4, 2025
Recommendations are for the 2025-2026 season in the northern hemisphere.
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Flu

Why do some people develop severe flu symptoms?

Nov. 19, 2024
Key influenza-severity risk factor found hiding in plain sight on our antibodies.
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Flu

CDC confirms new human cases of H5 bird flu in California

Oct. 4, 2024
Risk to the general public still remains low.
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Flu

Recommendations announced for influenza vaccine composition for the 2025 southern hemisphere influenza season

Sept. 30, 2024
The announcement was made at an information session after a 4-day meeting on the Composition of Influenza Virus Vaccines.
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Flu

FDA approves nasal spray influenza vaccine for self- or caregiver-administration

Sept. 23, 2024
First influenza vaccine that does not need to be administered by a healthcare provider.
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Flu

WHO updates influenza care guidelines, includes recommendations for viruses with pandemic potential

Sept. 16, 2024
The guidelines are designed primarily for healthcare providers who manage patients with influenza virus infection and will also serve as a reference source for policymakers and...
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Flu

CDC confirms human H5 bird flu case in Missouri

Sept. 9, 2024
This is the first case of H5 without a known occupational exposure to sick or infected animals.
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Flu

New initiative launched to advance mRNA vaccine development against human avian influenza (H5N1)

July 30, 2024
The mRNA Technology Transfer Programme, jointly developed by WHO and MPP, was launched in July 2021 with the aim to build capacity in low- and middle-income countries (LMICs) ...
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Flu

Colorado reports three presumptive positive H5 cases in poultry workers

July 15, 2024
CDC standing by to confirm specimens, sending team to support state investigation.
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Flu

CDC reports fourth human case of H5 bird flu tied to dairy cow outbreak

July 11, 2024
More information about A(H5N1) is available on the CDC website.