After-effects have not become an issue, but there were some complaints during the mission that personnel felt psychologically altered, so we developed a system to very carefully monitor whether we had a real danger of malaria, whether we had this anopheles mosquito and there was a danger of transmitting malaria in this area or not. If there was no malaria transmitter found, then mefloquine use was ended. This was the case for Afghanistan, for example.
On December 5th, 2017. See this statement in context.