Nothing.

And I never mentioned Biotech.

I did, however, make a point that you are speaking authoritatively about viruses on an airline pilot forum. Statistically speaking, airline pilots do not commonly dual major in epidemiology or some broad virology category. Now, I’ll come hat in hand if that is the case. But if you have some generic science degree, I’m sorry but that just doesn’t pass muster. Doctors will even disagree on the political nature of these discussions. For you to speak authoritatively as if your background elevates your opinion over other pilots is inappropriate, in my opinion. Regardless of a background in Biotech.