| dengue hemorrhagic fever in malaysia: the 1973 epidemic. | the first major malaysian epidemic of dengue hemorrhagic fever with severe manifestations occurred in 1973, with 969 reported cases and 54 deaths. in a detailed study of 138 clinically diagnosed and laboratory confirmed cases at the general hospital in kuala lumpur, hemorrhagic manifestations were observed in 68.7% and shock in 18.1% of the patients. the cases occurred mainly from may to september, largely in urban and suburban areas of the majority of the states in the country. a main focus of ... | 1980 | 6105712 |
| field efficacy of fipronil 3g, lambda-cyhalothrin 10%cs, and sumithion 50ec against the dengue vector aedes albopictus in discarded tires. | the efficacy of three insecticides, fipronil 3g, lambda-cyhalothrin 10%cs, and sumithion 50ec were evaluated against the dengue vector aedes albopictus in discarded tires in kuala lumpur, malaysia. the dosage given for each insecticide was 0.01 g of active ingredient/m2. fipronil 3g was the most effective larvicide with a residual activity of up to two weeks, causing 88% mortality in aedes albopictus. lambda-cyhalothrin 10%cs was effective for one week causing 92% larval mortality and two weeks ... | 1999 | 10672544 |
| dengue vector surveillance in urban residential and settlement areas in selangor, malaysia. | ovitrap surveillance was conducted in two urban residential areas (taman samudera timur and taman samudera selatan) and in a settlement area (kampung banjar), which is located 16 km from kuala lumpur city center, malaysia. in taman samudera, dengue cases were reported monthly in 2003/2004. thus, a study was initiated to determine the distribution and abundance of dengue vectors, aedes aegypti and ae. albopictus. the ovitrap surveillance indicated that ae. aegypti and ae. albopictus were present ... | 2005 | 16880752 |
| field bioefficacy of deltamethrin residual spraying against dengue vectors. | field bioefficacy of residual-sprayed deltamethrin against aedes vectors was evaluated in an urban residential area in kuala lumpur. the trial area consisted of single storey wood-brick houses and a block of flat. the houses were treated with outdoor residual spraying while the flat was used as an untreated control. initial pre-survey using ovitrap surveillance indicated high aedes population in the area. deltamethrin wg was sprayed at a dosage of 25mg/m2 using a compression sprayer. the effecti ... | 2005 | 16883280 |
| an epidemiological cluster pattern of dengue outbreak amongst close contacts in selangor, peninsular malaysia. | dengue fever is major public health problem especially among the highly urbanized states of malaysia, such as, selangor and kuala lumpur federal territory. we report an epidemiological cluster pattern of dengue outbreak in the district of gombak, selangor that may mimic other acute febrile illnesses in which the transmission mode is via close contact. this dengue outbreak consisted of two waves; an initial cluster of three cases (including the first deceased, ji) which occurred between 20th and ... | 2006 | 17240578 |
| mixed breeding of aedes aegypti (l.) and aedes albopictus skuse in four dengue endemic areas in kuala lumpur and selangor, malaysia. | ovitrap surveillance was conducted in four dengue endemic areas in kuala lumpur and selangor, malaysia to determine the distribution and percentage of mixed breeding of both aedes aegypti and aedes albopictus. the percentage of mixed breeding in all study sites both indoors and outdoors accounted for 10 to 32 % from the total ovitraps collected. ae. aegypti was found at a higher frequency than ae. albopictus in these ovitraps. this study again indicates that ovitrap is a sensitive tool to attrac ... | 2006 | 17322826 |
| chikungunya fever from malaysia. | an adult malaysian woman returned to japan from kuala lumpur and had onset of dengue fever-like symptoms including high fever, malaise and arthritis in early january 2009. serum obtained on the following day was tested at the national institute of infectious diseases in tokyo, where it was determined to be positive for chikungunya virus (chikv) rna. igm antibody against chikv was negative on january 6 and sero-converted to be positive on january 14, confirming a recent chikv infection. except fo ... | 2010 | 20190493 |
| molecular typing of dengue viruses circulating on the east coast of peninsular malaysia from 2005 to 2009. | from 2005 to 2009, the institute for medical research (imr), kuala lumpur, malaysia received 488 serum and blood samples from hospitalized patients on the east coast of peninsular malaysia, suspected of having dengue infection. in this study we determined the prevailing dengue serotypes using a real time polymerase chain reaction assay (rt-pcr). all 4 dengue virus serotypes were found circulating during the study period; however the predominant serotype varied. in 2005 and 2006, the predominant ... | 2011 | 21323170 |
| developing a vulnerability mapping methodology: applying the water-associated disease index to dengue in malaysia. | the water-associated disease index (wadi) was developed to identify and visualize vulnerability to different water-associated diseases by integrating a range of social and biophysical determinants in map format. in this study vulnerability is used to encompass conditions of exposure, susceptibility, and differential coping capacity to a water-associated health hazard. by assessing these conditions, the tool is designed to provide stakeholders with an integrated and long-term understanding of sub ... | 2013 | 23667642 |
| assessing weather effects on dengue disease in malaysia. | the number of dengue cases has been increasing on a global level in recent years, and particularly so in malaysia, yet little is known about the effects of weather for identifying the short-term risk of dengue for the population. the aim of this paper is to estimate the weather effects on dengue disease accounting for non-linear temporal effects in selangor, kuala lumpur and putrajaya, malaysia, from 2008 to 2010. we selected the weather parameters with a poisson generalized additive model, and ... | 2013 | 24287855 |
| vertical distribution of aedes mosquitoes in multiple storey buildings in selangor and kuala lumpur, malaysia. | the aim of the present study was to determine the vertical distribution and abundance of aedes mosquitoes in multiple storey buildings in selangor and kuala lumpur, malaysia. ovitrap surveillance was conducted for 4 continuous weeks in multiple storey buildings in 4 residential areas located in selangor [kg. baiduri (kb)] and kuala lumpur [student hostel of university of malaya (um), kg. kerinchi (kk) and hang tuah (ht)]. the results implied that aedes mosquitoes could be found from ground floor ... | 2013 | 23665706 |
| nepenthes ampullaria (nepenthaceae) pitchers are unattractive to gravid aedes aegypti and aedes albopictus (diptera: culicidae). | nepenthes pitcher plants are colonized by a variety of specialized arthropods. as aedes mosquitoes are container breeders, nepenthes pitchers are a potential candidate oviposition site for vector species, such as aedes aegypti (l.) and aedes albopictus (skuse). however, aedes spp. are not commonly encountered in nepenthes pitchers, and the environment inside the pitchers of some species is lethal to them. one exception is nepenthes ampullaria jack, whose pitchers are known to be colonized by ae. ... | 2016 | 26518035 |
| surveillance of aedes albopictus skuse breeding preference in selected dengue outbreak localities, peninsular malaysia. | entomological surveillance was conducted in order to determine the abundance and to evaluate any changes of biological vectors or ecology, especially in the dengue outbreak areas. the abundance and breeding preference of aedes albopictus and aedes aegypti were conducted in selected dengue outbreak localities in three states of peninsular malaysia namely selangor, federal territory of kuala lumpur, and penang island using ovitraps and larval survey method. it was determined that ae. albopictus wa ... | 2015 | 25801254 |
| vertical infestation of the dengue vectors aedes aegypti and aedes albopictus in apartments in kuala lumpur, malaysia. | dengue is a serious public health problem in malaysia. the aim of this study was to compare the vertical infestation of aedes population in 2 apartments in kuala lumpur with different status of dengue incidence (i.e., high-dengue-incidence area and area with no reported dengue cases). the study was also conducted to assess the relationship between environmental factors such as rainfall, temperature, and humidity and aedes population that may influence aedes infestation. surveillance with a mosqu ... | 2013 | 24551965 |
| insecticide susceptibility status of field-collected aedes (stegomyia) aegypti (l.) at a dengue endemic site in shah alam, selangor, malaysia. | biweekly ovitrap surveillance (os) was conducted for a year (august 2007 - september 2008) at two different dengue endemic sites in shah alam, selangor, malaysia, 50 km from kuala lumpur. aedes aegypti collected from these 2 locations were raised to the f3 stage and subjected to a who standard bioassay method to determine lethal time (lt) against pyrethroids (permethrin 0.75%, cyfluthrin 0.15%), organophosphates (malathion 5.0%, fenitrothion 1.0%), carbamates (propoxur 0.1%, bendiocarb 0.1%) and ... | 2012 | 23082552 |
| surveillance of aedes mosquitoes in a university campus in kuala lumpur, malaysia. | ovitrap surveillance was initiated for eight continuous weeks to determine the distribution and abundance of aedes sp. mosquitoes in the university of malaya campus, kuala lumpur, and the impact of meteorological conditions on the aedes populations. two study areas within the campus were selected: varsity lake and seventh residential college. the abundance of aedes populations in varsity lake was indicated by ovitrap index (oi) which ranged from 60.00%-90.00%. the mean number of larvae per ovitr ... | 2009 | 19901907 |
| spatial density of aedes distribution in urban areas: a case study of breteau index in kuala lumpur, malaysia. | dengue fever (df) is a major vector-borne disease in malaysia. the incidences of df in malaysia are caused by viruses transmitted through the bites of infected female aedes albopictus and ae. aegypti mosquitoes. this study aims to establish the spatial density of mosquito population or breteau index (bi) in the areas of kuala lumpur using geographic information system (gis), remote sensing (rs) and spatial statistical tools. | 2014 | 24947215 |
| cross-sectional survey on the dengue knowledge, attitudes and preventive practices among students and staff of a public university in malaysia. | behavioural impact programmes are especially effective for dengue control and prevention. universities are key settings for health promotion, so understanding factors that influence the practice of dengue prevention within a university community becomes important. this study aimed to examine the factors affecting dengue knowledge, attitude and preventive practices amongst students and staff of a public university. a cross-sectional survey study was conducted in kuala lumpur, malaysia. a total of ... | 2017 | 27696137 |
| spatio-temporal patterns of dengue in malaysia: combining address and sub-district level. | spatio-temporal patterns of dengue risk in malaysia were studied both at the address and the sub-district level in the province of selangor and the federal territory of kuala lumpur. we geocoded laboratory-confirmed dengue cases from the years 2008 to 2010 at the address level and further aggregated the cases in proportion to the population at risk at the sub-district level. kulldorff's spatial scan statistic was applied for the investigation that identified changing spatial patterns of dengue c ... | 2014 | 25545931 |
| field worker evaluation of dengue vector surveillance methods: factors that determine perceived ease, difficulty, value, and time effectiveness in australia and malaysia. | this qualitative study aimed to describe field worker perceptions, evaluations of worth, and time costs of routine dengue vector surveillance methods in cairns (australia), kuala lumpur and petaling district (malaysia). in cairns, the bg-sentinel trap is a favored method for field workers because of its user-friendliness, but is not as cost-efficient as the sticky ovitrap. in kuala lumpur, the mosquito larvae trapping device is perceived as a solution for the inaccessibility of premises to larva ... | 2015 | 25186807 |
| factors affecting dengue fever knowledge, attitudes and practices among selected urban, semi-urban and rural communities in malaysia. | dengue fever is a major public health problem in malaysia. this study aimed to assess factors affecting knowledge, attitudes, and practices regarding dengue fever among a selected population in malaysia. a descriptive, community-based, cross sectional study was conducted with 300 participants from three different geographical settings in urban, semi-urban, and rural areas within the states of selangor and kuala lumpur. the questionnaire included questions on demographic data, knowledge, attitude ... | 2013 | 23682436 |
| risk mapping of dengue in selangor and kuala lumpur, malaysia. | dengue fever is a recurring public health problem afflicting thousands of malaysians annually. in this paper, the risk map for dengue fever in the peninsular malaysian states of selangor and kuala lumpur was modelled based on co-kriging and geographical information systems. using population density and rainfall as the model's only input factors, the area with the highest risk for dengue infection was given as gombak and petaling, two districts located on opposite sides of kuala lumpur city that ... | 2012 | 23242677 |
| spatial pattern of 2009 dengue distribution in kuala lumpur using gis application. | in the last few years in malaysia, dengue fever has increased dramatically and has caused huge public health concerns. the present study aimed to establish a spatial distribution of dengue cases in the city of kuala lumpur using a combination of geographic information system (gis) and spatial statistical tools. collation of data from 1,618 dengue cases in 2009 was obtained from kuala lumpur city hall (dbkl). these data were processed and then converted into gis format. information on the average ... | 2012 | 22543611 |
| aedes larval population dynamics and risk for dengue epidemics in malaysia. | early detection of a dengue outbreak is an important first step towards implementing effective dengue interventions resulting in reduced mortality and morbidity. a dengue mathematical model would be useful for the prediction of an outbreak and evaluation of control measures. however, such a model must be carefully parameterized and validated with epidemiological, ecological and entomological data. a field study was conducted to collect and analyse various parameters to model dengue transmission ... | 2011 | 22041742 |
| role of primary care providers in dengue prevention and control in the community. | dengue fever is a major public health threat in malaysia, especially in the highly urbanized states of selangor and the federal territory of kuala lumpur. it is believed that many seek treatment at the primary care clinics and are not admitted. this study aims at establishing the fact that primary care practitioners, as the first point of patient contacts, play a crucial role in advising patients suspected of having dengue to take early preventive measures to break the chain of dengue transmissi ... | 2010 | 21265251 |
| gastrointestinal manifestations of dengue infection in adults. | this is a retrospective study of the gastrointestinal symptoms, signs and laboratory parameters in adult dengue patients admitted to kuala lumpur hospital from 1st december 2004 to 31st december 2004. clinical and laboratory parameters that may predict the need for intensive care were investigated. six hundred sixty-six patients with clinical and biochemical features consistent with dengue infection were identified. patients were stratified into those who required intensive care and those who we ... | 2008 | 19803300 |
| repeated tourniquet testing as a diagnostic tool in dengue infection. | prospective evaluation of repeated standard tourniquet testing as a diagnostic indicator of dengue infection was done. included were patients admitted to a children's hospital in kuala lumpur on a clinical suspicion of dengue infection based on the world health organization (who) criteria. a standard method of tourniquet was performed on 79 patients on a daily basis following admission. subjects and negative in the remaining 14 subjects. fifty-eight subjects were serologically confirmed cases, 4 ... | 2006 | 16708730 |
| relationship between breteau and house indices and cases of dengue/dengue hemorrhagic fever in kuala lumpur, malaysia. | the relationship between the breteau index, the house index, and the occurrence of dengue/dengue hemorrhagic fever in the 6 zones of kuala lumpur was studied throughout 1994. cases of dengue/dengue hemorrhagic fever varied between zones and between months, ranging from 0 to 21 cases. in most of the zones in kuala lumpur, the occurrence of dengue/dengue hemorrhagic fever has no relationship with the breteau and house indices. cases of dengue/dengue hemorrhagic fever occurred in all zones despite ... | 1996 | 8887232 |
| adult dengue haemorrhagic fever at kuala lumpur hospital: retrospective study of 102 cases. | a retrospective study involving 102 adults with dengue haemorrhagic fever (dhf) was conducted to investigate the demographic aspect, clinical presenting features, laboratory investigations, complications, and mortality associated with the disease. the clinical diagnosis of dhf was in accordance with who recommendations. epistaxis, gingivitis, haematemesis and gastritis were among the common complications. platelet levels tended to decline from a higher value on admission (mean 67,000/mm3) to low ... | 2004 | 7547159 |
| bleeding manifestations of dengue haemorrhagic fever in malaysia. | analysis of the bleeding manifestations of 130 cases of dengue haemorrhagic fever admitted into the children's ward of the general hospital, kuala lumpur from may 1973 to september 1978 has been done. petechial skin rash, epistaxis and gum bleeding were seen most commonly in mild and moderately severe cases. however, blood stained gastric aspirates, and severe haematemesis were seen in severe or very severe cases. though with better vector control and preventive measures, a marked reduction in t ... | 1981 | 6111919 |