DINAMIKA POPULASI Anopheles Aconitus KAITANYA DENGAN PREVALENSI MALARIA DI KECAMATAN CINEAM, TASIKMALAYA

Amrul Munif

DINAMIKA POPULASI Anopheles Aconitus KAITANYA DENGAN PREVALENSI MALARIA DI KECAMATAN CINEAM, TASIKMALAYA

Abstract


A study on the correlation of population dynamik An. aconitus with malaria prevalence was conducted in Cineam sub-district, Tasikmalaya district, West Java from August 1998 to March 2000. In 1996, outbreaks of malaria did not only occur in the coastal areas but was also spread throughout the more remote areas. Malaria transmission can be detected by the presence of infectious gametocyte dan non-immune individuals, as well as by looking at environmental factors (rainfall) and also the density of vector population. The intensity of malaria transmission and the degree of malaria prevalence are affected greatly by the last factor.   The intensity is also determined by the degree of contact between the person and the vector. An. aconitus have been suspected as malaria vector in Cineam sub-district, Tasikmalaya district. The observation of the bionomics wich one component of mosquitoes and its relationship with malaria prevalence as well as the determination of Anopheles spp. as malaria vectors in endemic areas should be given attention as an effort in preventing malaria outbreaks. The high density of vector mosquitoes is partly caused by their high diversity. Determination of the prevalence value is based on the Slide positifrate (SPR) that was obtained from analyzing blood samples of the  population. There was an examination on passive case detection (PCD), active case detection  (ACD), and mass blood survey (MBS) of the population beforehand. Methods used in surveying dan catching the vector mosquitoes include using humans as bait both inside and outside the house, using light trap, by resting, and also spraying. The longitudinal survey methods were used. Each catched mosquito was identified by looking at its morphological features.The transmission of malaria was found to occur all year round with the highest peak found in August 1998 (SPR= 4.9%), but then declined drastically in May (SPR=2.46%) and July 1999 (SPR= 2.4%) The occurrence of human biting by An. aconitus was the highest in January with a man biting rate (MBR) index of 2.3, while that of An. barbirostris was the highest in October with a MBR index of 6.75.  There is no significant difference between biting occurrence inside dan outside the house (P< 0.05). In contrast, the population density of An. aconitus was not found all year round, especially in August, September, October, dan December 1998, as well as in February and September 1999, but managed to show the highest parity in June 1999 (33). On the other hand, as the malaria prevalence increased, the population of An. aconitus also increased. This relationship shows is not significant correlation with regression equation Y= -0.0042 X+ 1,51, R = 0.044, p>0.05.


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p-ISSN: 0853-9987
e-ISSN: 2338-3445
Published by: Badan Penelitian dan Pengembangan Kesehatan
Jalan Percetakan Negara No.29
Jakarta Pusat 10560
Indonesia



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