We have a diagnosis! Confirmed by pathology! ARDS (Acute Respiratory Distress Syndrome) with an underlying cause of Acute Eosinophilic Pneumonia. The treatment is steroids & antibiotics, but he will probably have to stay on the ventilator for another several days. If everything goes well, hopefully, he will be home in time for New Year’s. In the meantime, keep the prayers coming, and any messages of encouragement will be passed along ASAP.
A link to the Wikipedia page about EP is here.