Wow, it seemed to move very quickly in this case and was not reversible.
It was not quickly. His first symptoms showed up in early November. He had his first Ebola test Nov. 6. It was negative. My understanding now is that his second test on the 8th was also negative, even though he was throwing up and had diarrhea with the fever. It wasn’t until the third test taken on the 10th that he tested positive. He was symptomatic well before his results tested positive. So there’s a problem with false negatives here.