This is such a frustrating situation to read about, because it is clear that Dr. Marrero is out of his depth, but it’s also clear that whatever this cluster is - real or imagined - was horribly mismanaged by the health officials in charge.
The fact that the investigation was disbanded simply because the patients had symptoms that can be tied to existing diseases is utterly asinine. As if there’s no reason to investigate why so many people in such a small area have similar conditions, or even to investigate whether or not the demographics of the supposed cluster are out of the ordinary in the first place. Even if there was no related cause at all, such an investigation could be used to determine that Dr. Marrero was the cause of a problem and stop him from doing harm. But instead the result was that no satisfactory conclusion was reached for the majority of people, and the patients continue to suffer.
These people need help and they are being failed by their doctors, their administrative officials and their representatives all at the same time.