 might be enough to draw some of these doctors back into into their jobs well thank you so much for that andrew and we started at the beginning of this program by talking about some things getting better in the world of global health and we are ending with a good news story and it's about an injection which if you have it can prevent you from contracting hiv for six months this is quite something isn't it oh it's incredible i mean this is this is really encouraging news coming out of a trial that was run in south africa and uganda and who was this trial done with