Rather than no touch perhaps we need better basic hygiene some people don't washed hands after using the toilet for example, tests onj bowls of peanuts or other food on bars have proven that.
Tests on phones have revealed more germs than a toilet seat.
Sometimes we are too clan some dirt never does any harm tooo
We have now found viruses frozen for 15,000 years , add that to space travel we don't know what is out there but that cannot be allowed to hold us back from exploring we have the tech to sequence DNA and make vaccines if we can speed that process up safely that could be one step in the right direction.