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PubMed1995

Age structure of Anopheles subpictus (Diptera:Culicidae) collected by a light trap in Halmahela, Indonesia.

Age structure of Anopheles subpictus Grassi was studied at a Halmahela village, Indonesia. Ovary development of females reared with 2% sugar solution after emergence ceased at Stage I and their ovary size remained small (mean length x width = 0.68 x 0.18 mm). Females with such small ovaries occupied 21.2% of unfed Stage I females in cattle-bait samples. The remaining unfed Stage I or II females had cleary larger ovaries (mean 1.17 x 0.39 mm). Unfed Stage I or II females collected by the outdoor light trap all had large ovaries (mean 1.42 x 0.34 mm) irrespective of stages and parity. The parous rate of unfed stage I or II females collected by the light trap (86.6%) was significantly higher than that of cattle-bait samples (69.6%). Feasibility of using outdoor light trapping in malaria entomology was discussed.

Age Distribution↗
PubMed1996

A survey of Toxoplasma gondii antibodies in goats and cattle in Lampung province, Indonesia.

A survey for antibodies to Toxoplasma gondii using latex agglutination test (LAT) was carried out from November 1994 to March 1995 in several areas of Lampung Province, Sumatra Indonesia with seropositivity rates of 47.5% in 160 goats and 9.0% in 200 cattle. Twenty-six out of 78 positive goats had a maximum antibody titer of more than 1:2,048. In case of cattle, the maximum antibody titer was 1:128.

Animals↗
PubMed1996

Seroepidemiology of five major zoonotic parasite infections in inhabitants of Sidoarjo, East Java, Indonesia.

We conducted a seroepidemiological survey of zoonotic parasite infection in inhabitants of East Java, Indonesia. The subjects of the survey were 244 persons selected from visitors to Sidoarjo City Hospital in East Java between May 1992 and October 1993. Ninety-seven had diarrhea and the rest came to the hospital for routine check-ups. All serum samples were tested for antibodies against five zoonotic parasites: Toxoplasma gondii, Entamoeba histolytica, Toxocara canis. Angiostrongylus cantonensis, and Anisakis species. Tests used were enzyme-linked immunosorbent assays (ELISA), latex agglutination (LA) test, indirect fluorescence antibody (IFA) test, hemagglutination (HA) test, and gel diffusion precipitation (GDP) test. Some 64% of the subjects had antibodies to T. gondii. The prevalence of antibodies to E. histolytica varied from 2 to 15% depending on the test, but the true rate was probably the 7% or 8% obtained by the HA and IFA tests. The proportions of subjects with positive results were 63% for T. canis, 17% for A. cantonensis, and 11% for the Anisakis spp. The prevalence of antibodies to T. gondii and T. canis was lower in subjects aged 1 to 9 years than in older subjects, probably because the persons in this group had less time to be infected. Antibody titers to A. cantonensis and the Anisakis spp. were high in the juvenile group, perhaps because recent changes in eating habits have increased opportunities for infection.

Adolescent↗
PubMed1996

Effect of air pollution on respiratory symptoms of junior high school students in Indonesia.

In 1994, 16,187 junior high school students were surveyed in Jakarta and surrounding cities, Indonesia, to study the effect of air pollution on respiratory illnesses. Nitrogen dioxide (NO2) was measured by the filter badge developed by Yanagisawa and Nishimura as a measure of air pollution. The average concentration of NO2 is the highest in central Jakarta and Tangerang (22-30 ppb), the lowest in rural areas (5-11 ppb), and in other cities, 11-20 ppb. Self-administered questionnaires were given to the students in 29 schools to obtain respiratory symptoms of cough, phlegm and wheeze. A significant relationship was found in this study between NO2 exposure levels and prevalence rates of cough, phlegm, and wheezing without cold, which were 27.7 to 38.7%, 15.0 to 21.9%, and 1.4 to 2.9%, respectively. Prevalence rates of persistent cough and persistent phlegm were 7.3 to 10.8% and 4.5 to 5.0% respectively. These rates were higher than those found by other researchers. This difference may be partly due to the survey methods. The more polluted, the higher the prevalence rate of respiratory symptoms.

Adolescent↗
PubMed1997

Parasitological and nutritional situation of school children in the Sukaraja district, West Java, Indonesia.

A parasitological survey of children aged 8 to 10 years from ten schools located in the rural district Sukaraja, West Java, Indonesia was conducted in December 1995. A total of 348 fecal samples were examined by using modified Kato-Katz thick smear techniques, 365 blood samples for the measurement of hemoglobin concentration, and anthropometric data were obtained from 404 participants. Four nematode (hookworm taken as one species), two cestode and nine protozoan species were detected, but no trematode infection was observed. Among helminths, soil-transmitted nematode infections were predominant, Trichuris trichiura with a prevalence of 76% being the most common infection, followed by Ascaris lumbricoides (44%). Hookworm and Enterobius vermicularis were found in 9% and 3% of the children examined, respectively. Among protozoa, Blastocystis hominis was by far the most common species, detected in 60% of volunteers cases. For the helminths A. lumbricoides, T. trichiura and hookworm, school to school differences in parasite prevalence and infection intensity were observed; these were probably due to different socioeconomic and sanitary-environmental conditions. Intensity of Ascaris and hookworm infection tended to be highly over-dispersed; 85% of the worms identified were harbored by 15% and 7% of the children, respectively. Nutritional status was characterized by an average anemia rate of 13% and a prevalence of 51% stunting. All nutritional indicators differed significantly from school to school. Intensity of geohelminths infection could not be associated to the observed nutritional indicators. Thus, there must be additional factors contributing to the studied nutritional indicators of the school children which overlay a possible influence of moderate to heavy worm burden.

Anemia, Iron-Deficiency↗
PubMed1997

Women's recall of obstetric complications in south Kalimantan, Indonesia.

The search for indicators for monitoring progress toward safe motherhood has prompted research into population-based measures of obstetric morbidity. One possible such measure is based on women's reports of their past childbirth experiences. In this prospective study in three hospitals in South Kalimantan, Indonesia, the accuracy of women's reporting of severe birth-related complications was examined. The findings of this study suggest that poor agreement exists between the way women report their experience of childbirth and the way doctors diagnose obstetric problems, although the degree of agreement varies with the type of complication. Questionnaires relying on women's experience of childbirth will tend to overestimate the prevalence of medically diagnosed obstetric problems such as those associated with excessive vaginal bleeding or dysfunctional labor. Questions suggestive of eclampsia may be more promising, although the small number of eclamptic women in this study precludes firm conclusions.

Adult↗
PubMed1998

Factors related to condom use among four groups of female sex workers in Bali, Indonesia.

This article tests a behavioral model of condom use for four groups of female commercial sex workers. Data were drawn from a study of 614 female sex workers conducted in Bali, Indonesia. AIDS knowledge, risk behaviors, and factors related to condom use varied substantially among the four groups of women and reflect the social context of their work. Interventions for each group need to reflect these differences. Important factors to consider include the level of AIDS and STD knowledge in their environment, the characteristics of the clients served, and the degree of supervision that they receive.

Acquired Immunodeficiency Syndrome↗
PubMed1976

Parasitology survey in northern Sumatra, Indonesia.

A parasitology survey was conducted in five villages in North Sumatra, Indonesia. A total of 3,207 blood smears, 2,066 stool specimens and 969 sera were examined. Sixty (1.9%) inhabitants had malaria (Plasmodium vivax 41, P. falciparum 19), and 20 had Brugia malayi microfilaraemia. The most common intestinal helminths were Trichuris trichiura (87%), Ascaris lumbricoides (75%) and hookworm (58%). Other helminths found in low numbers were Enterobius vermicularis, Strongyloides stercoralis, Taenia sp., Fasciolid, Dicrocoeliid and Echinostoma sp. eggs. Entamoeba coli (25%) was the most common intestinal protozoa followed by Endolimax nana (8%), Entamoeba histolytica (7%), Giardia lamblia (6%), Iodamoeba bütschlii (5%), Entamoeba hartmanni (1%) and Chilomastix mesnili (1%). The amoeba prevalence rate was 31 per cent. Testing of sera for Entamoeba histolytica and Toxoplasma gondii antibodies by the indirect haemagglutination test demonstrated positive reactors in 13 per cent and nine per cent of the population respectively. The greatest number of seropositives for Toxoplasma gondii was at elevations of sea level to five meters and the lowest number at elevations of 5OO-1,000 meters.

Adolescent↗
PubMed1997

Comparative performance of the ParaSight F test for detection of Plasmodium falciparum in malaria-immune and nonimmune populations in Irian Jaya, Indonesia.

A comparison was made of the performance of the ParaSight F test (F test) for detection of Plasmodium falciparum in blood from malaria-immune (410 native Irianese) and nonimmune (369 new transmigrants) populations in Irian Jaya, Indonesia, where malaria is hyperendemic and all four species of human malaria occur. There were highly significant differences between populations in the sensitivity (Irianese, 60% versus transmigrants, 84%; P < 0.001) and specificity (Irianese, 97% versus transmigrants, 84%; P < 0.001) of the F test. The test had comparably high levels of sensitivity for Irianese children aged < or = 10 years, both age groups of transmigrants (76-85%), but low sensitivity for Irianese aged > 10 years (40%), among whom only 7% of parasitaemias < 120 per microliter and 69% of those > 120 per microliter were detected. Specificity was comparably high for transmigrant children aged < or = 10 years and both age groups of Irianese (93-98%). The low specificity for transmigrants aged > 10 years (79%) was due to a preponderance of false positives, frequently identified by microscopy as P. vivax. The results suggest that comparison based on microscopy underestimated the performance of the ParaSight F test and that malaria immune status, irrespective of P. falciparum density, may influence the test's sensitivity.

Adult↗
PubMed1996

Women in the central highlands of Irian Jaya, Indonesia.

The weight, height and mid-upper-arm circumference (MUAC) were measured in 159 women of reproductive age between June and November 1991 in four remote valleys in the Eastern Central Highlands of Irian Jaya, Indonesia. The average weight was 42.3 +/- 5.2 kg and 26% weighed less than 40 kg. The average height was 141.3 +/- 9.1 cm and 30% were shorter than 140 cm. By the MUAC measurement, the nutritional status was considered to be inadequate (MUAC less than 23 cm) in 58% of the women. 8% of the women were observed to be visibly pregnant and 43% were lactating. In the same period 112 women in the Yamil valley were visited at home. They had given birth to 331 children, of whom 83 had died before the age of five years, i.e. a child mortality rate of 251 per 1000 births. Nearly half of the mortality (45%) occurred shortly after birth.

Adolescent↗
PubMed1997

Clients and brothel managers in Kramat Tunggak, Jakarta, Indonesia: interweaving qualitative with quantitative studies for planning STD/AIDS prevention programs.

Clients and brothel managers are often the most powerful decision-makers regarding condom use in brothels, but since publicly promoting condom use is still "culturally" difficult in Indonesia, the most feasible way of reaching clients is through the female commercial sex workers (FCSWs) and their managers. The existence of quasi-official brothel complexes in many major Indonesian cities, however, does make the government a key player in promoting condom use within these complexes. Interweaving qualitative with quantitative studies, this paper, which is part of a larger study, reveals the FCSWs' client/managers-related determinants of condom use. Policies that will promote condom use in brothel complexes are critical to the prevention of the spread of HIV throughout this community, as well as from it to the greater community.

Administrative Personnel↗
PubMed1997

A survey report--July 1993: cysticercosis in the Grand Dani Valley, Jayawijaya District, Irian Jaya Province, Indonesia.

A community survey was conducted in Gran Dani Valley, Jayawijaya District, Irian Jaya Province, Indonesia. A total of 537 adults were asked whether they experienced epilepsy, and were physically examined for cysticercosis cysts. Forty-eight percent experienced at least one attack of epilepsy. Men had attacks 2.5 times more often than woman. Cysticercosis cysts were found in 26.5% men having 4.6 times more cysts than women. The cysts were mostly found in the pectoral region. The survey showed a raise cysticercosis in the Highlands of Irian Jaya and is considered a public health problem. Treatment was not available, but improvement of personal and environmental hygiene would be important. Mass de-worming activity should be a part of routine public health service in the district.

Adolescent↗
PubMed1997

Breeding habitats of Aedes aegypti (L) and Aedes. albopictus (Skuse) in villages of Barru, South Sulawesi, Indonesia.

The breeding habitats of the dengue vector, Aedes aegypti and Aedes albopictus, were studied using larval collection method inside and outside houses in 6 villages of Barru, South Sulawesi, Indonesia from July 1994 to August 1995. Aedes aegypti was the dominant species, being abundant indoors especially in the coastal areas. Aedes albopictus was breeding primarily in outdoor containers in the hill and mountain areas. Earthen jar was the most common breeding habitat of Aedes aegypti in all villages surveyed. Drum can was the most common outdoor breeding habitat of Aedes albopictus in the hill and mountain areas. The high Breteau indices of Aedes aegypti and Aedes albopictus suggests that these species may play an important role in the transmission of dengue hemorrhagic fever in Barru where epidemics of the fever occur occasionally.

Adolescent↗
PubMed1998

Impact of a social marketing campaign promoting dark-green leafy vegetables and eggs in central Java, Indonesia.

In order to work towards further reduction of vitamin A deficiency in central Java, Indonesia, a social marketing campaign promoting eggs and dark-green leafy vegetables was initiated in March 1996. The nutritional surveillance system (December 1995-December 1996) found the following. The campaign's messages were well noticed. Consumption of at least one egg in the past week increased from 80% to 92% in mothers and from 78% to 92% in children 12-36 months old. It increased in all socio-economic groups and was independent of ownership of chickens. Most eggs had been purchased. The quantity of vegetables prepared increased from 93 to 111 g/person daily and most was purchased. Vitamin A intake increased from 335 to 371 RE/d for mothers and from 130 to 160 RE/d for children. Serum retinol levels increased after the start of the campaign, and were related to egg consumption and vitamin A intake. Because 1. data were collected in such a way that respondents were not aware of the link between data collected and the campaign, and 2. vitamin A status increased and was related to increased consumption of eggs and vitamin A intake, we conclude that the social marketing campaign was successful.

Adult↗
PubMed1999

Occurrence and virulence of a granulosis virus in phthorimaea operculella (Lep., gelechiidae) populations in indonesia

Indonesian potato growers face increasing problems from Phthorimaea operculella, whose larvae are responsible for damage in potato tubers. Use of biological control agents, and specifically entomopathogenic micro-organisms, could be an alternative method to chemical control. From this perspective, we carried out a screening and an evaluation of local granuloviruses which are naturally present in Indonesian pest populations. The use of an enzyme-linked immuno-sorbent assay allowed us to isolate three granulovirus strains from P. operculella larvae collected from three different locations in Indonesia: Wonsosobo (Central Java), Lembang (West Java), and Berastagi (Northern Sumatra). Bioassays did not reveal significant differences in the biological properties (LC50 and ST50) of these strains. The restriction pattern of the viral genome (Wonsosobo strain) presented only minor variations compared to other isolates collected in different regions of the world. Copyright 1999 Academic Press.

Journal Article↗
PubMed2002

Allozyme analysis of cryptic species in the Asplenium niduscomplex from West Java, Indonesia.

In various fern species, a large amount of rbcL sequence variation has been reported, and it is possible that these species contain several reproductively isolated cryptic species. In our previous study on Asplenium nidus L., it was suggested that the plants growing in Mt. Halimun National Park, West Java, Indonesia, consist of several cryptic species based on the results of crossing experiments among rbcL sequence types. In this study, we examined allozyme polymorphisms of five rbcL sequence types found in West Java in order to test the hypothesis that the assemblages of A. nidus delimited based on the rbcL sequences are separate Mendelian populations and gene flow is disrupted by reproductive isolation from one another. The calculated fixation indices suggested that the individuals in each rbcL type are randomly crossing at least in the investigated localities. Nevertheless, these rbcL-based assemblages were genetically differentiated in allozymes that are encoded in their nuclear genomes, and it is also suggested that gene flow is disrupted even between sympatrically distributed pairs of rbcL sequence types. Therefore, our findings support the view that the five rbcL sequence types in West Java are potential cryptic species.

Journal Article↗
PubMedDate not supplied

Two years' investigation of epidemic hepatitis E virus transmission in West Kalimantan (Borneo), Indonesia.

Two years' follow-up investigation of a hepatitis E virus (HEV) outbreak in West Kalimantan, Indonesia in 1991 was carried out to investigate the epidemiology of epidemic HEV transmission and the persistence of the immunoglobulin G (IgG) antibody response. Sixty cases identified as anti-HEV IgG positive during the outbreak in 1991 were matched with 67 controls and examined, together with 318 members of their families. Overall, the prevalence of anti-HEV IgG among the 445 subjects (representing 127 households) was 59%. There was no significant difference in anti-HEV prevalence between cases (72%) and controls (61%). Loss of detectable anti-HEV IgG after 2 years was demonstrated in 17 of 60 subjects (28%) who were originally positive for anti-HEV in 1991. The mean number of anti-HEV positive subjects per household was 2.04. Cross-sectional prevalence of anti-HEV IgG increased significantly with age (P = 0.01). When communities were grouped into areas of low (< 40%), medium (40-59%) and high (> or = 60%) anti-HEV prevalence, use of river water for drinking and cooking (P < 0.001), personal washing (P < 0.0001), and human excreta disposal (P < 0.001) were associated with high prevalence communities. Conversely, boiling drinking water was negatively associated with increased prevalence (P = 0.02). Subnormal rainfall during the month (August) leading up to the 1991 outbreak (19 cm compared to the monthly mean of 209 cm in 1985-1993) may have contributed to favourable epidemic conditions.

Adolescent↗