Identifikasi Parasit Usus pada Lalat di Pasar Simpang Limun Kota Medan

Abstract

Introduction. Intestinal parasite infestation in human may produce clinical symptoms such as abdominal pain, nausea and vomiting, diarrhea, and other related digestive problems. Intestinal parasite infestation is also closely related to the lack of cognitive development and poor growth among children . Adult flies act as mechanical vectors because they can spread parasite through various parts of their bodies, such as the mouth, legs, body, and wings. Traditional markets are one of the favorite places for flies to breed b ecause they produce a lot of wet and organic waste from sales activities. Objective . Identifying the species of flies and intestinal parasites carried by flies at Simpang Limun Market, Medan Methods. The study sampling collection took place in Simpang Limu n traditional market, Medan, in September 2024 . All flies were captured using plastic fly catcher and the species were identified by morphology in the laboratory. The surface of the fly’s bodies and their intestinal contents were centrifuged until sediment was formed. Each tube was pooled to contain 10 adult flies. The sediment was examined under a microscope with lugol staining. Results. A total of 414 flies were captured from the Simpang Limun traditional market. The identified species were Musca domestic a (70%), Chrysomya megacephala (12.5%), Fannia sp. (8.6%), Musicin sp. (3.3%), Chrysomya bezziana (1.7%), Sarcophaga sp. (1.7%), Chrysomya saffranea (1.2%), Phormia regina (0.7%), and Lucillia cuprina (0.2%). In total, 14 hookworm eggs were found on the su rface of the flies’ body after all samples were processed. Conclusion. Intestinal helminth’s eggs were found on the external surface of the fly’s bodies. The application of WASH principles can maintain market hygiene and sanitation to limit the spread of parasites by flies.