Replies to post #372586 on Innovation Pharmaceuticals Inc (IPIX)

[CallMeCrazy]

https://www.cdc.gov/media/releases/2021/s0806-vaccination-protection.html

Message in reply to:

https://fee.org/articles/harvard-epidemiologist-says-the-case-for-covid-vaccine-passports-was-just-demolished/

Methods We conducted a retrospective observational study comparing three groups: (1)SARS-CoV-2-naïve individuals who received a two-dose regimen of the BioNTech/Pfizer mRNA BNT162b2 vaccine, (2)previously infected individuals who have not been vaccinated, and (3)previously infected and single dose vaccinated individuals. Three multivariate logistic regression models were applied. In all models we evaluated four outcomes: SARS-CoV-2 infection, symptomatic disease, COVID-19-related hospitalization and death. The follow-up period of June 1 to August 14, 2021, when the Delta variant was dominant in Israel.

https://www.medrxiv.org/content/10.1101/2021.08.24.21262415v1

Often observational studies lead the way in research as associations from these studies help to formulate hypotheses to be tested in subsequent controlled experiments.

https://www.ctu.mrc.ac.uk/patients-public/about-clinical-trials/what-is-an-observational-study/