Practically, due to high elevations there are no malaria-carrying mosquitos on Kilimanjaro. Also, anti-malaria pills are reported to impact the hikers health condition on Kilimanjaro in a negative way, while, worsening the symptoms of high-altitude acclimatization. However, the risk of infection is always present on the lower elevations before or after Kilimanjaro, as well in the National Parks on safari. Because of that, we recommend consulting your physician before the trip. Overall, it is always your decision whether to take malaria pills or not.