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9mo ago

Rising Bird Flu Cases in the U.S. Raise Concerns Over Human Transmission

Recent infections in Colorado poultry workers highlight the virus's spread to mammals and potential human health risks.

A cow stands on a 2D green patch, gazing into three standing vaccine syringes — health coverage from STAT
H5N1 has been around for decades but the current avian flu version is jumping from birds to cattle and humans. No serious illnesses have been reported from avian flu in the United States.
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Overview

  • H5N1 avian influenza has infected 170 dairy herds across 13 states in the U.S.
  • Three new human cases were confirmed among Colorado poultry workers, bringing the total to 13 since April.
  • The virus has been found in various mammals, including cats and raccoons, raising pandemic concerns.
  • Health officials emphasize the low risk of human-to-human transmission but stress the importance of protective measures.
  • Development of vaccines for cows is underway, though experts debate their effectiveness and feasibility.