Here's a novel idea... Researchers from Michigan State University have bred mosquitoes with resistance to malaria. My first thought was that they've got things the wrong way round. But actually it's a great step forward. Scientists infected mosquitoes with bacteria that made them a pretty unwelcoming environment for malarial parasites. So fewer survive to be passed on to humans.
At the moment this has only been tested in one species. It'll be pretty amazing, though, if we can adapt nature in this way to prevent a serious human disease.
This research appears in the 10 May 2013 issue of Science, the journal of AAAS, the non-profit society.