That is overstepping there authority.
They have no authority to say the medical certification is invalid if it is valid at the FAA you know the regulating agency over the USPA witch is not a government agency and has no legal authority over the Government agency FAA...
Vaccinations and masks are per personal requirement not mandatory.
Virus particles are between
60-140 ng with that said.
There are 1000 ng in 1 micron
So n95 mask is rated at
95% effective @ particles @330ng. ng=nanograms
=.3 microns
You do the math.
Ask the China's bio-wepons dept.
If it was an accident.
I'll wait for CCP answer.
NO IM NOT WONG.
Trained by US Navy
I'm sure you aren't.