I was in Kenya in 1985. The Malaria pills you got then was Chloroquine and Nivoquine, both now obsolete.
Malaria mosquitos build up resistance all the time.
Now it's Lariam, can make people psychotic, but I or my 8 year old never had a problem with it, besides some weird dreams.
Malarone is the best. Even if expensive. It is definately worth it. Cos your life is precious.
Malaria can kill you within 48 hours. If you take prophelactics, it won't.
If you don't, it will. (could).
For (adult) people in Africa it is like having a flu bout. Cos they have built up immunity.
Malarone is best, I never bother with all that shit about covering your skin etc. and mosquito nets (not always available) anyway.
Dengue fever mosquitos come out during the day, malaria ones during the night.
DEET is goed too (available in Europe), and Citronella candles or anti-mosquito coils, which you can buy in any local shop there.
It never put me off travelling!