Chris, it's Vada here, I have a new user name here. Ed and I spent time in New Guinea in 1969-1970, we took all the required medication starting a month before and finishing a month after our return. Four months after our return I became very ill and was treated for everything from stress to influenza, the gp's here know nothing about malaria but as a last resort 5 months later the doctor contacted the University of NSW and sent blood samples, the results were positive, I had Malaria. They recommended a course of Primaquin which I think was 2 tablets a day for 28 days. It did not flare up again for several years, so long ago I can't remember exactly. I was in hospital for 9 weeks for a gall bladder op which went terribly wrong, I had nothing by mouth for around 6 weeks and was terribly run down, my weight went down to 40kg which is roughly 84lb. I had a malaria attack while in hospital, there was no medication in the hospital and can't remember if they sent out for some. I have been very lucky since then, no further attacks since. I am never to go into an area again where there is a risk of being stung by the mosquito again. it lays dormant in the spleen. I hope this can be of some help for your daughter. I will keep her in my prayers.