for permission to expand its trial to 44,000 participants, from its initial target of 30,000. The studies were paused last Sunday, but not reported until the news was broken by STAT on Tuesday. That illness was determined to be unrelated to the vaccine. The New York Times has reported that the patient developed symptoms consistent with transverse myelitis, or inflammation of the spinal cord. While the broad outlines of the vaccine trial designs have been made available — including on a federal clinical trial registry — crucial details remain a mystery.

Source: New York Times September 13, 2020 19:18 UTC