H5N1 influenza is evolving rapidly, weakening the effectiveness of existing antibodies and increasing its potential threat to ...

The CDC has issued interim effectiveness estimates for the 2024-2025 seasonal influenza and 2024-2025 COVID-19 vaccines.

To maintain vaccine efficacy, WHO regularly updates influenza vaccine strains based on global epidemiological, virological, ...

This year’s flu vaccine has been effective overall against the current strains of the virus, despite cases and hospitalizations surging in the region, according to the latest federal data.

Preliminary estimates show the flu vaccine was up to 55% effective at preventing hospitalizations among adults this season, according to a Feb. 27 CDC report. This season's preliminary estimates ...

This season's influenza vaccine may have been a poor match to a strain of the flu virus that caused many infections this winter, early data released by the Centers for Disease Control and ...

Even as more people are dying from flu, the Trump administration has postponed vaccine planning for next fall's flu season.

This flu season has been particularly bad for children, with many experiencing severe complications such as pneumonia, dehydration and organ failure.

The agency formulated its advice to manufacturers after coordinating with the CDC and Defense Department. An advisory meeting ...

ATLANTA, GA — New data from the Atlanta based CDC shows this year’s flu vaccine was less effective than most years. The vaccine is usually 40% to 60% effective. However, this year preliminary ...

a 2024-2025 COVID-19 vaccine effectiveness (VE) analysis sourced from data from the Virtual SARS-CoV-2, Influenza, and Other respiratory viruses Network (VISION) and the Investigating Respiratory ...