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Pakistan Journal of Biological Sciences

Year: 2008 | Volume: 11 | Issue: 12 | Page No.: 1620-1624
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Authors

*Mohammad Iqbal Yasinzai

Juma Khan Kakarsulemankhel

Keywords

Research Article

Incidence of Human Malaria Infection in Northern Hilly Region of Balochistan, Adjoining with NWFP, Pakistan: District Zhob

*Mohammad Iqbal Yasinzai and Juma Khan Kakarsulemankhel
This study was conducted to investigate the incidence of malarial infections in human population in 37 localities of district Zhob, Balochistan, Pakistan. Malarial parasites were identified in the blood slides of suspected patients of the disease from July, 2004 to June, 2006 and encompassed 7748 subjects. Out of 7748 suspected cases of malaria, 3240 (41.8%) were found to be positive for malarial parasite in blood smear slides. Out of positive cases, 1681 (51.8%) were identified as Plasmodium vivax infection and 1559 (48.1%) cases with P. falciparum. However, seasonal variation was also noted with the highest (85.4%: 141/165) infection of P. vivax in March and lowest (18.6%: 59/316) in October while infection of P. falciparum was highest (81.3%: 257/316) in October and lowest (14.5%: 24/165) in March. Infection with P. vivax in male was 75.7% (125/165) in March and in female 26.3% (58/220) in May whereas infection of P. falciparum in male was 61.5% (245/398) in July and in female was 20.5% (65/316) in October. These results are compared with those of other studies done in Pakistan. Cases of P. malariae and P. ovale were not found in the present study. In conclusion it can be pointed out that the high incidence rate of P. vivax (51.8%:1681/3240) in Zhob district poses a significant health hazard because it may also lead to cerebral malaria as it was suggested by previous workers.
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