It's a complex event that we have to prevent. It's mandatory to have an effective prevention over this event because of the acute important (???) might be very severe, but because of the long-term consequences that this condition(?) have on the natural history of the disease.
Transcriber note: There are two segments where I could not understand the speech, sorry!
So, it's a complex event that we have to prevent.
It's mandatory to have an effective prevention over this event because
of the acute important ****, that the *** could be very severe,
but because of the long-term consequences that exacerbation
have on the natural history of the disease.