Bird flu vaccine trial against potential pandemic strain begins

• H5N1 vaccine trial has commenced targeting a potential pandemic strain currently circulating in bird populations without documented human-to-human transmission
• The preventive vaccine approach aims to prepare defences against H5N1 before widespread human infection occurs, rather than responding to an active pandemic
• Clinical readiness for an emerging zoonotic threat represents a shift towards proactive pandemic preparedness in vaccine development strategy

The jab targets the H5N1 flu strain which has caused devastating infections in bird populations worldwide, but has yet to spread between humans.

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