Bill Gates is saying we might have the first, partiallly effective but workable malaria vaccine by 2013, and a full, 100% vaccine by 2020. No more doxycycline, malarone or lariam. That would be a huge breakthrough for travellers in Kenya and throughout Africa. Not to mention for local people, who have to put up with this disease all their lives. Currently, across Africa 3000 children a day die of malaria.
The BBC story is here.