<p><em>The use of cypermethrin insecticide is one of the strategies in vector control that has been carried out by the Port Health Office of Karimun Regency. It is necessary to evaluate the use of insecticides because of the threat of resistance in controlling dengue hemorrhagic fever. The purpose of this study was to determine the resistance of Aedes albopictus mosquitoes to cypermethrin insecticides in the Meral Port area at the Port Health Office of Karimun Regency. This type of research was a quasi-experimental with a posttest only control group design. The population of this study was Aedes albopictus mosquitoes in the Meral Port area while the samples taken were 100 Aedes albopictus mosquitoes. The results showed that the resistance status of the Aedes albopictus mosquito to cypermethrin in the Meral Harbor area was in the vulnerable category with a mortality percentage of >98%. The Port Health Office of Karimun Regency is expected to be able to evaluate and follow up regularly on vector control activities that have been carried out in the Meral Port area and the need to periodically test mosquito susceptibility to insecticides with different methods. It is necessary to rotate the use of insecticides for mosquito control and re-do mosquito nest eradication (PSN) in the Meral Port area.</em><em></em></p>
Dengue Hemorrhagic Fever (DHF) is still a public health problem in Indonesia. The number of sufferers and the area of their distribution is increasing along with the increasing mobility and population density. The purpose of this study was to compare the number of eggs trapped in the ovitrap using rainwater and PDAM water. This type of research was a quasi-experimental design with a post-test-only design. Determination of the sampling location was done by determining the point of the house of DHF sufferers and their surroundings. The total number of eggs trapped in the ovitrap was 3829 eggs. The number of rainwater ovitraps (2279) traps more Aedes spp mosquito eggs than PDAM water ovitraps (1553). Ovitrap index of 61% in this study was included in the level 4 category or high above 40%. The results of the Mann-Whitney analysis with p-value = 0.637 > 0.05 means that it did not showed a significant difference between the number of eggs trapped in the rainwater ovitrap and PDAM water. There was no difference in the average number of eggs in rainwater and PDAM water ovitrap media. The community of RT 2 and RT 3 RW 1 are expected to always carry out the Mosquito Nest Eradication (PSN) movement at least once a week to reduce the proliferation of the DHF vector.
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