Groundbreaking project has produced some of the world’s most comprehensive studies on vaccine efficacy and safety

The largest ever global study into the safety of Covid-19 vaccines has been terminated just 13 months shy of completion, after becoming caught up in the Trump administration’s sweeping funding cuts.

The Global Vaccine Data Network, which was established in 2019 by the New Zealand-based vaccinologist Helen Petousis-Harris and the US-based vaccinologist Steven Black, has already produced some of the world’s most comprehensive studies on vaccine efficacy and safety, based on data from more than 300 million people.