I'm reminded of the research from decades ago on the size of infectious particles for airborne disease transmission. Animals were exposed to droplets containing tuberculosis, producing a model for whether other diseases could be transmitted through the air.

That model said COVID-19 could not, which we now know is entirely wrong. As it turns out, tuberculosis must travel deep into the lungs to produce an infection, which is not true for every pathogen.

It's important to check the assumptions underlying new research and make sure they really apply.