摘要:An analysis of the malaria cases in the current NNDSSdataset was undertaken for cases with onset dates in 1991 to 1997. To allow for reporting delays, the analysis foreach year included cases with onset dates in that yearwhich were reported up to and including 30 June in eachsubsequent calendar year. Data were downloaded fromEpiInfo version 6 and analysed using SPSS for Windowsversion 8.0 Time series data for the period 1917- 1991were downloaded from the NNDSS historic data collectionin Microsoft Excel