you are probably trolling - but if you are asking a legit question - there are multiple types of "germs". Virus is only 1 kind, but there's also bacteria, fungus, parasites and others. Each type of thing has different ways in which is usually transmits, so masks have varying effectiveness against them.
and more to your point - medical professionals usually don't wear masks.
They typically only due when there is an absnormally high risk. For example surgery when you have literal open wounds that they are directly breathing into. Dentistry, same thing, they literally have their face in your face with your mouth open for extended periods of time.
But if you go for a sport physical or your have knee pain or need a new prescription - they never wear masks for those sorts of regular interactions because conversational risk of transmission is negligible.
If masks don't reduce the spread of disease, why do medical professionals wear them?
you are probably trolling - but if you are asking a legit question - there are multiple types of "germs". Virus is only 1 kind, but there's also bacteria, fungus, parasites and others. Each type of thing has different ways in which is usually transmits, so masks have varying effectiveness against them.
and more to your point - medical professionals usually don't wear masks.
They typically only due when there is an absnormally high risk. For example surgery when you have literal open wounds that they are directly breathing into. Dentistry, same thing, they literally have their face in your face with your mouth open for extended periods of time.
But if you go for a sport physical or your have knee pain or need a new prescription - they never wear masks for those sorts of regular interactions because conversational risk of transmission is negligible.
Why did China hoard masks?
fearmongering / psychological warfare
Study Led by D.A. Henderson — The Man Who Eradicated Smallpox — Found Draconian Lockdowns for Flu Pandemics AND MASKS Ineffective and Even Destructive
This isn't the flu.