there is always a chance of passing something between reptiles. Use the general precautions such as not mixing species or keeping more than one animal in a container (in most cases), washing YOUR hands in between handling animals, keeping enclosures clean. If you keep your animals responsibly there will still always be a chance but you lower the chance just by using common sense.
I might add the first responsible step you have taken is asking this question and doing your research. Good for you![]()