Latest scientific data on a single dose of Oxford vaccine finds:

- Vaccine efficacy 76% from day 22 to day 90.

- 100% effective at stopping hospitalisations from day 22 to 90.

Antibody levels were "maintained during this period with minimal waning by day 90."
The analysis also shows that higher vaccine efficacy is obtained with a longer interval between the first and second dose.

The data appears to support the government's strategy of opting for one dose and then providing the second dose 12 weeks later.
The research was done by academics from several universities, including Oxford, Siena, Sao Paulo, Witwatersrand, Sheffield, Liverpool and more.

But from my understanding the paper has not been peer reviewed.
Much of the data has now been published and you can read it here: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3777268
Conclusion of the research:
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