This question is clearly answered by the CDC's "Myths and Facts about COVID-19 Vaccines"
Will getting a COVID-19 vaccine cause me to test positive for COVID-19 on a viral test?
No. None of the authorized and recommended COVID-19 vaccines cause you to test positive on viral tests, which are used to see if you have a current infection.
The correct way to bill Medicare patients for a diabetic foot exam performed on the same calendar day as other service is no additional codes.
From the American Academy of Family Physicians:
Medicare does not allow for separate payment of an E/M code and a diabetic foot evaluation on the same date. Should you provide a diabetic foot exam to a patient with a ...
There is no "authoritative document" like you ask for. The FDA doesn't set concrete standards for efficacy and safety; rather, they review applications for vaccines and other drugs on a case-by-case basis according to safety, efficacy, other available treatments, and severity of the condition.
The FDA has issued guidance to industry about how they ...
For the results you are interested in you need the full text of the publications.
For Pfizer/BioNTech vaccine (BNT162b2 mRNA):
N Engl J Med 2020; 383:2603-2615
Clinical Trial: NCT04368728
For Moderna vaccine (mRNA-1273):
N Engl J Med 2020; 383:1920-1931
Clinical Trial: NCT04283461
For Astra Zeneca ...