Entomology
The Entomology Unit is based in Madang with its own laboratories, offices, field equipment store and insectary. Its major activities have been to study the mosquito vectors of malaria, filariasis and arbovirus infections. The abundance and distribution of vector species have been studied in the field. Infected and infective mosquitoes have been analyzed in the laboratory. Behavioural and genetic studies have been conducted in the field and laboratory. The unit provides a national resource for entomological reference and for the monitoring of vector control programs and has carried out many research programs on malaria and filariasis.
Filariasis is widespread throughout coastal Papua New Guinea, but only in certain areas is there a high prevalence of clinical disease. One such area is around Dreikikir in East Sepik Province, where the Institute's filariasis research project is being carried out, in collaboration with colleagues from Case Western Reserve University. Epidemiological, parasitological, immunological, clinical and vector studies are in progress as well as a long-term, community-based treatment program against the disease which compares the efficacy of diethylcarbamazine (DEC) alone and in combination with ivermectin. Interventions against the vector will also be evaluated. The results from the study so far indicate striking effects on infection and transmission which give encouragement to the efficacy of diethylcarbamazine (DEC) alone and in combination with ivermectin. Interventions against the vector will also be evaluated. The results from the study so far indicate striking effects on infection and transmission which give encouragement to the campaign for the elimination of lymphatic filariasis. A national working group has been established and communities at risk have been encouraged to carry out their own program of supervised mass drug administration.
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