Are your have exposed to epidemic diseases due to your move to Kunmung please
and did have vaccination

Kunming is less prone to epidemic diseases and viruses, virus carrying mosquitos and allergies due to it's climate and location.
People in China tend to get the same vaccination as we do in western countries.

The really big issue in China is food-poisoning. Stay away from Chinese owned places that pretend to sell western food, and stay away from pork, eat halal. Bring some "probiotic multi-bacterial stomach flakes" (food supplement) for light cases, loperamide (i.e. immodium) for the heavy long-lasting cases.

"Stay away from Chinese owned places that pretend to sell western food"

That's a bit harsh. Is Chapter One owned by a Chinese? How about the shop selling imported food in the North? They are both fine and I've never had issues with their Western food. In fact, you'll have more chances of catching cancer from burnt food served at a few Western-owned places in Kunming or around Yunnan.

are there good and safe restuerant you recomned

what about food from supermarkets
is it good and safe

Sorry, I mean places like Blue Bird. Not a place to bring your children or business partners. There's of course exceptions to the rule.
Places owned by HK, Guangzhou, Shanghai and Beijing owners tend to be of a higher standard because of their exposure to western food.

There are some quality bakeries in town. All bakeries I've been were safe.

Supermarkets are normally safe. There's western supermarkets in town (Carrefour, Metro, Wallmart)

taufic, really, I think you're worrying too much. I've been here 12 years, eat wherever I want, have only very rarely had any stomach problems that didn't go away in 36 hours, and there are no significant epidemic diseases to worry about. I wouldn't bother to recommend safe restaurants, but if I thought really hard I might come up with one that isn't, but I can't think of any such at the moment. I buy my food at a local shop near where I live and I buy fresh vegetables and meat in the local market. And the stomach problems that didn't go away in 36 hours went away in 48. There are very few problems with violence, although there are fights in bars once in awhile, but no more than anywhere else. The only criminal problem that I know of that has affected any significant number of people whom I know is bicycle theft. I have had no special vaccinations against anything since coming to China. I am well over 60 years old. An American friend of mine had a heart attack a few months ago; he then had triple bypass heart surgery in a local private hospital in July - the surgeon flew in from Beijing to do it, and it cost him about US$20,000. I ran into him about 5 days ago and he looked better than he has in years.
My guess is that you live in a more dangerous environment than I do, or for that matter, than most people do.
As for families with children, there are more of them all the time.
Relax.

Not sure what "higher standard because of their exposure to western food" means, but the Chinese have their own interpretation of Western food. Some places in town that are owned by local Yunnanese have high standards when it comes to hygiene and use higher quality ingredients when preparing their steak with pasta and fried egg. One in Chengdu also kept higher standards by using handpicked fresh fruits and organic flour for their fruit pizza. Haven't had any food poisoning with those, despite the fact that the owners weren't Westerners or from 1st tier local cities.
However, at the small, dirty and cheap places that mainly serve local food, that's a different story.