That article is from a few years after the first successful attempt at treatment. While enormously involved and expensive, with a low probability of success an

That article is from a few years after the first successful attempt at treatment. While enormously involved and expensive, with a low probability of success and a near certainty of moderate to severe neurological damage, it appears that the general treatment approach used for Giese has since resulted in further survivors, such that there have now been around a dozen survivors out of a few dozen post-symptomatic treatment attempts. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7670764/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7670764/