
Hi Bluebell,
In all honesty, your children are far more likely to catch something from other people than they are from a dog. I can honestly say that in my whole life with dogs (from before I can remember) I have, hand on heart,
never caught anything from a dog.
Latest studies (reported widely in the press a couple of months ago) show that children who have pets, especially dogs, and those children living on farms with a lot of livestock, have a much higher developed immune system than those without, and have far fewer days off school through illness.
If you keep the dog routinely wormed and de-fleaed (sp?) your children will ebnefit from the presence of a dog, both mentally and physically. But unless you can relax, you won't be happy, and then nobody else will. I hope this helps. :)