I commented on an article. I think the comment would also be helpful to the visitors of this blog.
@ “They are science, as best as I know it.” How? (link)
The question is which science is being followed here – presumably epidemiology. Epidemiology is “the branch of medicine which deals with the incidence, distribution, and possible control of diseases and other factors relating to health.” (link)
It means it is part of medicine. Sorry to say it, but science is not part of the training or learning of medicines. For example, an M.D. (Doctor of Medicine) is a standard non-science undergraduate degree. Therefore, epidemiology should not be considered a science subject or part of it. (link).
In general, epidemiology depends on the interpretation and/or outcome of diagnosis/testing from the medical area. For example, in the case of the COVID-19 pandemic, the whole story revolves around PCR testing, which by any standard is a fake and fraudulent test, i.e., it has no link to the virus (SARS-COV-2), illness (COVID-19) or mRNA (vaccine development). Hence, all interpretations, including those by epidemiology, will be presumptions or opinion-based, not scientific or factual.
The actual science of medicine is chemistry, particularly analytical chemistry (link). Please consider this.