We are all aware of the Stinky Feet effect, in which human skin odors attract female anophelines in a dark bedroom. And to many of us, this suggests that we should wash our feet before going to bed.
Now, Mescher of ETH Zurich, De Moraes and others - in a recent article in Proc. of the National Academy - indicated that mice infected with Plasmodia are more attractive to anophelines than ordinary mice. SO
If this evolved as a durable trait in anopheline mosquitoes, it means it conferred either a survival advantage, or a reproductive advantage to the mosquito.