piece that can be done his epidemiological studies which, as you know, involving large numbers of people and you also need large numbers of cases. at the moment, the only place those kind of studies can realistically be done are in south africa and there we rely on the world health organization under the south african public health authorities who are truly excellent and i hope they will get has an answer soon. and i hope they will get has an answersoon. on and i hope they will get has an answer soon. on that point, i think we have to again pay tribute to the excellence of a south african signs and at the authorities there —— south african signs and at the authorities to help bring this to the royal's attention at the earliest point they could do so. that is the —— to the world's