The agency was appointed for the second year running for the event, a gathering of health professionals in June, following a non-competitive pitch.
Salix will be responsible for delivering the media strategy and managing press activity before, during and after the event.
Sarah Wrixon, managing director, Salix & Co, said: "As health and social care challenges become more complex, and the system ever more fragmented, this event gives commissioners access to information and resources across the entire system."
Alex Jones, marketing manager at CloserStill Media, said Salix would be instrumental to the success of the show.
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