The study was not set up to look at any differences between the two. The Pfizer/BioNTech was available first so there is more data, but the Oxford/AstraZeneca was mostly used in the older age group. The numbers were very small and there was uncertainty over their significance, said the researchers. The study, released as a preprint ahead of peer review, is hosted on the University of Edinburgh website (bit.ly/3aHQXzh), and has been uploaded to the SSRN preprint site, according to a University statement. That rose to more than 85% after the second dose.
The study was not set up to compare the two. The Pfizer/British Columbia-based research indicated that they had noticed something different between the two.
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The study was not set up to compare the two . The Pfizer / British Columbia - based research indicated that they had noticed something different between the two .
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