No denying the seriousness of malaria. However Canova did not seem to think that taking medication to prevent malaria was particularly useful:
http://www.letsrun.com/forum/flat_read.php?thread=4575000&page=2
Quote from his post:
"One example : the most part of people coming Kenya follow a lot of profhylaxis against yellow fever, malaria, colera, typhus and other diseases. Result ? Many of them become sick, because all the vaccinations make them very weak. I live in Kenya 8 months per year, I came here in 1998, AND NEVER GOT ANY MEDICINE. And, of course, I never had any problem.
Try to return to a more natural approach, avoiding any idea of drugs not only in sport, but in your life, and you can become more quiet and your life become better."
Read more:
http://www.letsrun.com/forum/flat_read.php?thread=4575000&page=2#ixzz45DxNRieO