that expert is dr michael worobey, who heads the ecology and evolutionary biology department at the universityank you forjoining us. a second pair of eyes is always useful. in looking at the world health organization report you have found what is a crucial fact they have wrong and that, if i am correct, is that mr chan, the accountant who was the first known case, was not in fact showing symptoms under the eighth of december by the 16th of december which means mrs white, a seafood vendor was in fact patient zero. is that what you have found? i would not say cheese _ what you have found? i would not say cheese patient - what you have found? i would not say cheese patient zero, i not say cheese patient zero, she is the first known patient. 0nly she is the first known patient. only about 7% of people who get the virus and up in the hospital and she is one of those. ., hospital and she is one of those. . i. hospital and she is one of those. ., , ., ., ~' hospital and she is one of those. ., ., ~ ., those. how did you work that out? i had — those. how did you work that out? i had known _ those. how