This is a preliminary research study and may not be replicated. Things I would want to know, after a replication study is published, is what the effect size is

This is a preliminary research study and may not be replicated. Things I would want to know, after a replication study is published, is what the effect size is across more than one animal model (both mice and rats should be tried, and different strains of inbred mice with known differences in cognitive performance on mouse cognitive tasks should definitely be tried). I would also want a broader survey of human patients from more different parts of the world to see how many human beings show the same clinical sign the authors report here. And I'd want some of the human surveys to include very young participants, to see if rates of purported infection increase as human beings age. Right now, if I were to bet on this, my bet is that this result doesn't even replicate. (That's a reasonably good bet, as only about 50 percent of all scientific first findings, even those that have been published in a peer-reviewed journal, ever do replicate.)