Drawing on past toxicity problems scientists used an enlarged quinolone to improve selectivity for the malaria parasiteA new class of antimalarial drugs that is effective across various stages of the malaria parasite’s lifecycle has been developed by an international research team. Early indications also show that it may take longer for the parasite to develop resistance to the new molecules than it has for existing drugs targeting the same pathway.Malaria is a devastating disease worldwide, and the ability of the Plasmodium family of parasites that cause the disease to develop resistance to drugs leads to a constant arms race for...