Abstract
A survey of microfilaraemia among the population of Vanua Levu, Taveuni and Koro islands in northern Fiji was conducted in 1968 and 1969 as a prelude to a campaign of mass treatment with diethylcarbamazine.
The prevalences of microfilaraemia were found in the more moist conditions of Taveuni and Koro and on the windward southern side of Vanua Levu to be higher than on the drier northern side of Vanua Levu. On both sides of Vanua Levu prevalences were lower inland than near the coast.
Under apparently similar environmental conditions those of Fijian ethnic origin exhibited a higher prevalence of microfilaraemia than that shown by Indians. This ethnic difference and a difference between the prevalences in male and female Fijians are considered to be due more to higher rates of recovery from microfilaraemia in Indians and Fijian women than to diminished exposure to mosquitoes. Mathematical models have been used as an aid to the interpretation of the data, and, where appropriate, comparison has been made with the prevalence of antibodies to dengue, an arbovirus having the same vectors.
Household infections were analysed by computer techniques. Infections in large households were not proportionately higher than in small households, indicating that transmission was not intrafamilial. The clustering of infections within households, though present, was not marked. Among the occupants of outlying settlements the prevalence of microfilaraemia was relatively low indicating a lower risk of infection due to isolation.
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Selected References
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- BURNETT G. F. Filariasis research in Fiji, 1957-1959. Part III. Experiments in control of adult mosquitoes. J Trop Med Hyg. 1960 Sep;63:208–215. [PubMed] [Google Scholar]
- BURNETT G. F., MATAIKA J. U. MASS ADMINISTRATION OF DIETHYLCARBAMAZINE CITRATE IN PREVENTING TRANSMISSION OF APERIODIC HUMAN FILARIASIS. II. RESULTS OF A BLOOD SURVEY MADE FOUR YEARS AFTER DRUG ADMINISTRATION. Trans R Soc Trop Med Hyg. 1964 Nov;58:545–551. doi: 10.1016/0035-9203(64)90111-7. [DOI] [PubMed] [Google Scholar]
- CROSSKEY R. W., CROSSKEY M. E. A quantitative survey of onchocerciasis in persons under twenty years of age in an endemic area of Northern Nigeria; with a consideration of the epidemiology based on a mathematical hypothesis, by F. N. Macnamara. Ann Trop Med Parasitol. 1959 Apr;53(1):10–24. doi: 10.1080/00034983.1959.11685893. [DOI] [PubMed] [Google Scholar]
- Ciferri F., Siliga N., Long G., Kessel J. F. A filariasis-control program in American Samoa. Am J Trop Med Hyg. 1969 May;18(3):369–378. doi: 10.4269/ajtmh.1969.18.369. [DOI] [PubMed] [Google Scholar]
- HALEY A. J. Sex difference in the resistance of hamsters to infection with the rat nematode, Nippostrongylus muris. Exp Parasitol. 1958 May;7(3):338–348. doi: 10.1016/0014-4894(58)90030-4. [DOI] [PubMed] [Google Scholar]
- HAYASHI S. A mathematical analysis on the epidemiology of Bancroftian and Malayan filariasis in Japan. Jpn J Exp Med. 1962 Feb;32:13–43. [PubMed] [Google Scholar]
- Hariston N. G., Jachowski L. A. Analysis of the Wuchereria bancrofti population in the people of American Samoa. Bull World Health Organ. 1968;38(1):29–59. [PMC free article] [PubMed] [Google Scholar]
- JACHOWSKI L. A., Jr, OTTO G. F. Filariasis in American Samoa. IV. Prevalence of microfilaremia in the human population. Am J Hyg. 1955 May;61(3):334–348. doi: 10.1093/oxfordjournals.aje.a119758. [DOI] [PubMed] [Google Scholar]
- Laigret J., Kessel J. F., Bambrideg B., Adams H. Onze ans de chimioprophylaxie par la diéthylcarbamazine de la filariose lymphatique apériodique à tahiti. Bull World Health Organ. 1966;34(6):925–938. [PMC free article] [PubMed] [Google Scholar]
- MCCARTHY D. D., FITZGERALD N. I. Habit, habitat and hyperfilariation in the epidemiology of filariasis in Western Samoa. Trans R Soc Trop Med Hyg. 1956 Jan;50(1):58–65. doi: 10.1016/0035-9203(56)90009-8. [DOI] [PubMed] [Google Scholar]
- Maguire T., Macnamara F. N., Miles J. A., Spears G. F., Mataika J. U. Mosquito-borne infections in Fiji. II. Arthropod-borne virus infections. J Hyg (Lond) 1971 Jun;69(2):287–296. doi: 10.1017/s0022172400021513. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marshall C. L., Yasukawa K. Control of bancroftian filariasis in the Ryukyu Islands: preliminary results of mass administration of diethylcarbamazine. Am J Trop Med Hyg. 1966 Nov;15(6):934–942. doi: 10.4269/ajtmh.1966.15.934. [DOI] [PubMed] [Google Scholar]
- Mataika J. U., Dando B. C., Spears G. F., Macnamara F. N. Mosquito-borne infections in Fiji. 3. Filariasis in northern Fiji: epidemiological evidence regarding the mechanisms of pathogenesis. J Hyg (Lond) 1971 Jun;69(2):297–306. doi: 10.1017/s0022172400021525. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McCARTHY D. D., FITZGERALD N. Researches in Western Samoa. III. Observations on filariasis. Trans R Soc Trop Med Hyg. 1955 Jan;49(1):82–89. doi: 10.1016/0035-9203(55)90088-2. [DOI] [PubMed] [Google Scholar]
- ROSEN L., ROZEBOOM L. E., SWEET B. H., SABIN A. B. The transmission of dengue by Aedes polynesiensis Marks. Am J Trop Med Hyg. 1954 Sep;3(5):878–882. doi: 10.4269/ajtmh.1954.3.878. [DOI] [PubMed] [Google Scholar]
- SASA M., MITSUI G., SATO K. STUDIES ON EPIDEMIOLOGY AND CONTROL OF FILARIASIS. MICROFILARIAL SURVEYS IN THE AMAMI ISLANDS, SOUTH JAPAN. Jpn J Exp Med. 1963 Feb;33:47–67. [PubMed] [Google Scholar]
