I'm no doctor but I think it's certainly possible that consumption of the active flu virus doesn't necessarily lead to infection. There are a variety of infecti

I'm no doctor but I think it's certainly possible that consumption of the active flu virus doesn't necessarily lead to infection. There are a variety of infection vectors, some more likely than others to cause people to get sick. Four years ago there were people rushing to wash their hands and wipe down their groceries for Covid-19, when there was evidence that the virus was transmitted through the air. And people were concentrating on all the wrong things like wiping down their tables just so they could sit in a crowded restaurant.