 So everything I can report is from observational data and the measurements we've taken so far in an ongoing study. So this isn't formally analysed yet. But what I can say is that for the patients that are presenting in hospital, so those with quite severe disease, we're seeing a mortality rate of about 5% in adults and about 10% in children. And also lots of the pregnant cases that have been in quite a high proportion of the pregnancies have been sadly lost. And so it is associated with quite a worrying level of mortality.