Pfizer–BioNTech COVID-19 vaccine (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pfizer–BioNTech COVID-19 vaccine" in English language version.

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  • Rosales-Mendoza S, Wong-Arse A, de Lourdes Betancourt-Mendiola M (2021). "8. RNA based vaccines against SARS COV-2". In Rosales-Mendoza S, Comas-García M, González-Ortega O (eds.). Biomedical Innovations to Combat COVID-19. London: Academic Press. pp. 129–152. ISBN 978-0-323-90248-9. Archived from the original on 11 January 2022. Retrieved 19 December 2021.

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  • This is a type of study where researchers recruit two groups: people who test positive for the disease (cases) and those who test negative (controls) (Vandenbroucke 2019). They then survey these individuals for factors which may have affected whether or not they developed the disease (in this case, vaccination status) (Patel 2020). In the case of Lopez Bernal et al, they also assessed which variant each "case" contracted (e.g. alpha [B.1.1.7] or delta [B.1.617.2]) using both RT-PCR testing and whole genome sequencing. To evaluate efficacy, the researchers determined how much less likely a person was to contract each variant based on their vaccination status. In this case, a person who received two doses of the Pfizer vaccine was 93.7% less likely to contract the alpha variant and 88.0% less likely to contract the delta variant, when compared to an unvaccinated person.
    • Vandenbroucke JP, Pearce N (November 2019). "Test-Negative Designs: Differences and Commonalities with Other Case-Control Studies with "Other Patient" Controls" (PDF). Epidemiology. 30 (6): 838–844. doi:10.1097/EDE.0000000000001088. PMID 31430265. S2CID 201117050. Archived (PDF) from the original on 21 September 2021. Retrieved 31 August 2021.

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