Hand washing isn't out of place, but now that that is said I have been quite lax with out 8 with no problems. I hand wash a lot but that is to keep from transferring thing TO the snakes and to snake to snake just in case.

I suspect that it is from somewhere else. But just a FYI Vinegar (straight out of the grocery store) after 20 min of contact kills salmonella. I am not careful around the snakes but around raw chicken... If he did and you didn't where did he eat besides home. And speaking from someone who has had Salmonella, it is the most sick I have ever been a bit of upset and feeling ill isn't likely to be salmonella poisoning in the first place.