I have been reading the post for the past several months regarding strangles, and it seems that is is mostly in 1 area of the country (or at least this outbreak).

Have any of the breeders who have been effective compared the food that you are feeding or were feeding your bitches? I believe from what I have studied strangles is an immune problem, possibly something was lacking int he food, or possibly a bad batch that was in your area?
Please, i am not trying to start a controversy, but just wondering if that could have anything to do with it, being that fact that the dog food companies seem to be switching things all the time.

I feed pro plan performance to my moms and Pro plan chicken and rice puppy to the little ones. This is my first case of strangles.

This is my first case of strangles ever and 6 of 8 got it. I also fed ProPlan Chicken and Rice Puppy. My bitch was on ProPlan Selects Chicken and Rice. I will say that my girl was in the worst condition I've ever seen any of my girls post whelp. She looked great while pregnant and the pups were all 15-18oz. I put her on 4 Health recently and Super 14 and she is starting to look gorgeous again. The pups are 13 weeks. I still have 4 here on meds. It's taking forever to get them well.