Your dog is a prize possession for you, so, you must take all sorts of precautionary measures to keep him away from all sorts of diseases and other health concerns. However, you will certainly be happy to know that the research that have been done to keep your house dog fit and fine is certainly so extensive that if you will spend some time learning about those specific things and diseases for which your dog is vulnerable, then you can also work to take precautions.
When you will be having a dog, you will understand that it's not all that easy to keep him as there can be all sorts of problems in managing the healthcare issues. That is one of the reasons that you have to deal them like a family member. When it comes to diseases, there are all sorts of diseases in dogs which may of mild in nature like cold and may be life threatening like cancer. Also, your dog can have all sorts of allergies. So, you must keep a not of it and try to treat your dog with best things and always keep him clean and tidy as cleanliness can save him from a lot of diseases.
So, it is f utmost importance that you pay a sufficient attention to the health of your dog as it is not only important for your dog but it is essential for public in general. There are quite a few diseases in dogs which are rates as contagious and some are quite harmful for humans as well, for instance, rabies is good example of that.