Dr Arturo Reyes-Sandoval tells us about his research on a vaccine against Plasmodium vivax. Plasmodium vivax, one of the four malaria parasites that affect humans, is difficult to eradicate due to its ability to lay dormant in the liver for long periods of time. This parasite is found in Africa, Asia, Latin America and the Western Pacific. 40 percent of the world's population is exposed to the disease that is responsible for around 130 to 350 million clinical cases every year. Dr Arturo Reyes-Sandoval aims to develop a novel malaria vaccine against Plasmodium vivax.