Even if they are dewormed 2X a year, I would be more concerned about what they could infect YOU with. After all, they go outside in the dirt & use their tongues on their nether parts.

I hope you will get on a parasite cleansing program (after that a liver cleanse program.) Hulda Clark said everyone she ever tested had parasites & everyone had Tapeworms in particular. In the link below you can see how to check for them easily.

What helped me in case any of it can help you:
//www.curezone.org/forums/fm.asp?i=1522290#i