This 17 year old"was gagging a lot" and he died of "respiratory distress". Was he eating by mouth? Or was he choking on his own saliva? Did the doctor rule out aspiration pneumonia? I'm a dietitian and there are a lot of unanswered questions here. It doesn't sound like a tubefeeding infection. Was the child vomitting up tubefeeding formula? I think death being caused by the tubefeeding is far-fetched. I have heard of brain injuried children dying of respiratory distress though because their weakened bodies are unable to fight off the infections that you and I can handle with ease.