Science

People may have preexisting immunity to bird flu

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 26/10/2026, 13:55:25 UTC.

Briefings

Canadian virologists at CHUM University of Montreal analyzed blood samples from 24 healthcare workers before and after receiving their annual flu shot to investigate preexisting immunity to bird flu viruses. The study suggests some individuals may have natural resistance to avian influenza, though the evidence remains preliminary.

Key points

• 24 healthcare workers from CHUM University of Montreal provided blood samples for analysis.
• Samples were collected before and after receiving the annual flu shot to compare viral exposure.

Context

This research investigates whether people have natural immunity to bird flu viruses, potentially reducing pandemic risk. The study is part of ongoing virological research at CHUM University of Montreal.

Limitations

Analysis focused on 24 healthcare workers at CHUM University of Montreal; results are preliminary and do not represent the general population.

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