Auckland University Associate Professor Helen Petousis-Harris is the project leader and co-director of GVDN. Clinical trials provided the information needed to authorise vaccines for use, but it’s vital to continue monitoring how they work, she said. “There are many new Covid-19 vaccines, and it is therefore imperative that there be a global, centralised surveillance process to detect any very rare vaccine safety issues and to allow ongoing risk-benefit assessments.” With such a huge data set, scientists will be able to assess even extremely rare outcomes, such as hospitalisations. The study will draw from populations across Europe, the Americas, Asia, Africa and the Western Pacific, with more countries expected to join as the study progresses.
Detecting Rare Blood Clots Was A Win, But US Vaccine Safety System Still Has Gaps
The quick detection of an ultra-rare blood clotting reaction in some covid-19 vaccine recipients showed the power of a federal warning system for vaccine safety issues, but experts worry that blind spots in the program could hamper detection of other unexpected side effects.
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Before the pandemic began, the Food and Drug Administration had scaled back a program it used successfully to track adverse events during and after the 2009 H1N1 influenza pandemic, and the agency is still ramping up its replacement, said Dr. Robert Chen, scientific director of the Brighton Collaboration, a nonprofit global vaccine safety network.
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