pips&peeps
There is no "I" in Ameraucana
The person on facebook that said they were going to cull their entire flock is poorly educated about Salmonella. They have had their birds since last year and there is zero validity for their post. Just like dogs and cats get fleas, all chickens carry salmonella, not just the ones from Mt. Healthy. Everyone needs to take the proper precautions when handling animals or eating animal products. If someone wants to consume raw eggs, they are doing so at their own risk. Most people have pretty good immunity to small quantities of Salmonella, but feeding undercooked egg or meats products to children, the elder, or the immunocompromised is negligent in my opinion.
If your birds aren't sick and you are washing your hands, I wouldn't worry about it.
No, all chickens do not carry salmonella and the particular strain is bad.