My Lords, further to the question from the noble Baroness, Lady Hayman, about malaria, my noble friend will be aware that malaria mortality has halved in this century, which is a remarkable achievement. Seventy per cent of that reduction was due to a surprisingly low-tech innovation—namely, the insecticide-treated bed net, although, as my noble friend said, resistance is becoming a problem. Is he aware of research that is going on to improve the efficacy of insecticide-treated bed nets, and is this something that the British Government support?