Very interesting people, thanks for the replies.
Thankfully none of us have had worms ( well not that im aware of any how) its just the fact that we have so many animals and we all handle them that i thought it a good idea to start again. Im disappointed that i cant do myself only for peace of mind but if everyone around me is done then myself and DD should be pretty right. Even though i know you cant eradicate (s) every worm as they have different life cycles its better than not at all.

Thanks again for all your replies.