I had to reply to this. On another forum I posted pics of my coastal carpet python & mentioned that he loves to go outside. I said I took pics of him in the grass, but he blended in too much to use those. Someone wrote me to stop taking my snakes outside as they read it is very dangerous. My snakes would acquire diseases from such encounters.
I still take them out occasionally & have never had any problems yet. It strikes me a little funny that if it were so dangerous, why do breeders often take pictures of theirs outside for the best lighting?! They would have the most to lose if it were a major concern.