A cardiologist or immunologist (or physician, in general) is considered an expert/specialist on chemicals (medicines, including vaccines) and chemical testing (PCR, Rapid test, sequencing, etc.) without having relevant training and working experience.
However, having many years of training and working experience with chemicals, chemists/scientists are considered to have irrelevant expertise and opinions on the subjects. Why is it so?
Next time you are asked to follow the science (or advice), ensure the expert or specialist has some documented relevant working experience.
For further details, please follow the links below.