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Objective. To determine changing trends of plasmodium vivax and plasmodium falciparum in different seasons of the year.
Material and Methods. This study was carried out from January 2017 to December 2017 in medical units of Khyber
teaching hospital Peshawar, Pakistan. All febrile patients admitted in the ward in year 2017 were included in study. Patients
were labeled as malaria when giemsa stain slides revealed trophozoites. The frequency of Vivax and falciparum
was determined and statistically analyzed for different seasons of the year.
Results. Out of total 115 diagnosed cases of malaria, 20 percent Vivax occur in autumn,19 percent occur in winter,
29 percent in spring and 32 percent in summer while 33 percent of falciparum occur in autumn, 13 percent in winter,6
percent inspiring and 46 percent in summer. Malaria show significant change in trends in different season of the year
in a way that plasmodium falciparum reached highest frequency in autumn and summer and plasmodium vivax is
relatively constant throughout the year with slightly more cases in spring and summer.
Conclusion. There were significant seasonal changes in trends of malaria in different seasons of the year with plasmodium
falciparum peaking in the summer and plasmodium Vivax persisting throughout the year.
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