@pseudomonas With the caveat that a lot of the orthodoxy around those viruses also originates from the same utterly wrong assumptions that made the WHO state that covid couldn’t possibly be airborne until they evidence that it was became overwhelming.
I’m not saying personal hygiene with regard to hand cleanliness isn’t important: it is. It’s much more an issue for gastrointestinal stuff though, and is unhelpful to focus on with diseases (including the ones you mention), that the vast majority of people catch through inhalation.