university of edinburgh medical schoot school. looking at the pieces school. looking at the pieces of evidence we have already in trying to connect the dots. have already in trying to connect the dots, it looks like it was not bioengineered. it was a natural origin bioengineered. it was a natural origin but bioengineered. it was a natural origin but it could have happened through origin but it could have happened through a origin but it could have happened through a laboratory accident, a laboratory through a laboratory accident, a laboratory leak, as you say, because when laboratory leak, as you say, because when it laboratory leak, as you say, because when it emerged so close to the wuhan when it emerged so close to the wuhan institute of urology, which is a level wuhan institute of urology, which is a level four wuhan institute of urology, which is a level four laboratory, the highest level of a level four laboratory, the highest level of experiments with danger