Whatever statistics that is out there on malaria in Nigeria, the reality is probably worse because most cases won't even make it into the stats.
These recurrences every 2-3 months are they relapses from the parasite sitting dormant in the hepatocytes of the liver. Or are we talking about frequency of reinfection with the parasite?
It is more of the former. Although the potential for the latter remains in areas with large mosquito population. Can't remember the last time I saw a mosquito around here but I'm a regular customer to the disease.