I do not believe they can catch our colds, but to be on the safe side, make sure he washes his hands a lot, and especially just before he handles the beardie. It might be best to limit handling time, though.
I just set Swordtail's timer for his bath and paused it so I could actually fill his soaking bowl up and he crawled over my phone and canceled the timer
Mirage came out of brumation on April 26. He was doing great. On May 2 he started acting funny. We just redid his tank, and he keeps going into one of his hides. He just lays there. He shows no intrest in food. HELP!