The manipulation of the CCR5 gene in China to prevent HIV transmission in children was an unusual case and not a necessary intervention, as effective alternatives existed.

“so the circumstance in China was um something I have to admit was I thought was a little unusual so it was a circumstance um in which the ccr5 gene was manipulated to try and prevent um children from getting infected with HIV um by manipulating that Gene it's not as if that was curing a disease to your point it's not as if it was uh preventing a disease that was a foregone conclusion it was preventing transmission of infectious agent that those children were at increased risk or it was not a foregone conclusion that they would have been HIV your HIV positive wasn't it also the case that there was very little chance they were going to be because this was an IVF”