Seasonal variations in incidence of severe and complicated malaria in central India.

The geographical position and climate of India is favorable for the transmission of malarial infection. The maximum prevalence of malaria in most parts of India is from July to November months. Rainfall provides mosquitoes, a breeding ground giving rise to epidemics. We studied the seasonal variation in cases of severe and complicated malaria presenting at MGIMS, Sevagram, Wardha (Vidarbha region in Maharashtra) over a period of three years. The findings of peak of malaria observed during September-November during three years period points to the fact that the increase in vector breeding after rainy season is responsible for the upsurge in the malarial cases during these months. This also indicates that this area (Vidarbha) has an unstable transmission of malaria.