covid-19, but this is raising new debate about the origins of the covid-19 pandemic. what do you make of all of this? >> you know, rosemary, i think we need a lot more information to understand what this really means. i think for many this might seem like a red flag that you have three people who are hospitalized from that same lab. i do think it's important to understand that in the chinese context people have a lower threshold to go to the hospital for what we might be considered a cough or cold, we could go to urgent care or to our regular doctor and for a number of reasons, some of them cultural, they might present to a hospital. i think it's important not to read more into that than there is evidence for. i think what we need to know are details like what are the lab safety logs showing, other laboratory records, could we get access to the hospital care records, the patient care records for those three lab