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PubMed1993

Survey of the Anopheles maculatus complex (Diptera: Culicidae) in peninsular Malaysia by analysis of cuticular lipids.

Anopheles maculatus Theobald sensu lato is a species complex now consisting of eight sibling species; An. maculatus is still represented by two cytologically distinct forms; i.e., the widely distributed sensu strictu or B, and E from southern Thailand and adjacent areas in northern Malaysia. Cuticular lipid profiles in conjunction with principal component analysis was used to separate An. maculatus form E from sensu stricto form B in a preliminary survey of the An. maculatus complex at five locations spanning peninsular Malaysia. The relative rank orders, from the areas of the five gas chromatographic peaks used to determine lipid differences for specimens from peninsular Malaysia, matched well with those from cytogenetically identified colony specimens of An. maculatus forms B and E. The two-dimensional principal component pattern of specimens identified as form E was highly clumped, which indicated that very similar cuticular lipids were present within this putative malaria vector. Both forms coexisted in peninsular Malaysia, but form E may be dominant except in the south.

Animals↗
PubMed1975

Hepatitis B surface antigen subtypes in Malaysia.

One hundred and ninety hepatitis B surface antigen positive (HBsAG+) sera were subtyped, belonging to : blood donors, hepatitis patients, patients and staff in a hemodialysis unit, all from Kuala Lumpur; Malaysian aborigines from three jungle locations in Peninsular Malaysia; and East Malaysians from Sarawak, East Malaysia; Three subtypes adr, adw and ayw were present in Malaysia in the following frequencies: 44%, 29%, and 27%, respectively; In Kuala Lumpur 87% had subdeterminant d and 13 per cent y, whereas in the deep jungle aborigines of Perak and Pahang, the y subdeterminant was present in 87% and the d in 13%. A similar pattern of preponderance of y prevailed in Sarawak, East Malaysia. In Kuala Lumpur the two main ethnic groups, Malays and Chinese, differed in subtype distribution, in that adr predominated in the Malays (61%), while the adw predominated in the Chinese (51%); Subtype distribution was not related to age or sex of carriers of the antigen, or to whether they had hepatitis, or asymptomatic antigenemia.

Blood Donors↗
PubMed1998

Haemophilus influenzae meningitis in Malaysia.

OBJECTIVE: To determine the pattern of postneonatal childhood meningitis in Malaysia. METHODS: Retrospective cross-sectional study involving five pediatric departments in Malaysia. RESULTS: There were 435 cases of clinical meningitis admitted to the five centers. More than 90% of the patients were <5 years old, and one-half were <6 months of age. The estimated overall incidence of childhood meningitis in the first 5 years of life was 76.7 per 100000 per year. However, of the 435 cases only 71 (16.3%) fulfilled laboratory diagnostic criteria and in only 58 of these was an organism isolated. Nearly one-half (48%) of all bacteriologically proved cases were caused by Haemophilus influenzae type b (Hib). The mortality rate was 12.5% and 21 patients (30%) suffered neurologic sequelae. CONCLUSIONS: More than one-half of all cases of culture-positive childhood bacterial meningitis were caused by Hib, although successful isolation of a pathogen occurred in only a small proportion of cases. For this reason the true incidence of Hib meningitis in Malaysia remains unknown. These findings are consistent with previous studies in Malaysia.

Child↗
PubMed1993

Challenge to clinical pharmacy practice in Malaysia.

OBJECTIVE: To report on the current status and future trends of clinical pharmacy practice in Malaysia. DATA SOURCES: Published conference reports and journal articles. DATA EXTRACTION: Data on areas related to clinical pharmacy practice in Malaysian hospitals were gleaned from various publications. DATA SYNTHESIS: Malaysia is capable of implementing clinical pharmacy services in hospitals and perhaps also in the community setting. The important factors in clinically oriented pharmacy practice include improvement of the drug-control process, development of physical and human resources, clinical pharmacy skills, and the training of practicing pharmacists. A number of Malaysian pharmacists have already developed a unit-dose drug distribution system, patient counseling, therapeutic drug monitoring, drug information, and total parenteral nutrition services. CONCLUSIONS: The pharmacy profession in Malaysia has many challenges ahead and it is hoped that every practicing pharmacist will be highly committed to future professional needs so that clinical pharmacy practice in Malaysia becomes a reality.

Drug Information Services↗
PubMed2003

The organisation of the Department of Veterinary Services in Malaysia.

The Department of Veterinary Services (DVS) in Malaysia was established in 1888 as an agency to control exotic and domestic animal diseases. Over the years, the structure and functions of the organisation have evolved to meet the growing demand for veterinary services. The responsibilities of the Veterinary Services are enshrined in the Constitution of Malaysia. The current organisation of the DVS is structured to achieve the following objectives:---to prevent, control and eradicate animal and zoonotic diseases--to facilitate the growth and development of a strong animal industry--to ensure that animal products for human consumption are wholesome, clean, safe and suitable to be consumed--to facilitate the growth and development of the animal feed industry--to ensure the welfare and well-being of all animals. To meet these objectives the DVS has nine different divisions, as follows: Planning and Evaluation, Epidemiology and Veterinary Medicine, Veterinary Public Health, Research and Development, Industry Development, Production and Development of Genetic Resources, Human Resource Development (HRD), Enforcement, and Administration. The development of the animal industry is managed through national development policies, including the Third National Agriculture Policy. The basis for current programmes for disease control and animal industry development is the Eighth Development Plan (2001-2005). Over the period of this Plan, Malaysia will address the need for sanitary and phytosanitary measures by developing specific programmes covering all fields of the animal industry. This is just one way in which Malaysia is meeting the challenges of the increased liberalisation of trade created by the World Trade Organization and the Association of Southeast Asian Nations Free Trade Area. The development of the industry is focused on the major commodities, namely, beef, mutton, poultry meat, eggs, pork and milk. Other commodities receive support if it is considered economically viable. All support services are being strengthened, particularly the HRD division. The organisation and functions of the DVS are constantly being reviewed in accordance with changes in the animal industry and the nature of the services in demand.

Animal Diseases↗
PubMed1999

Type-3 dengue viruses responsible for the dengue epidemic in Malaysia during 1993-1994.

To characterize the dengue epidemic that recently occurred in Malaysia, we sequenced cDNAs from nine 1993-1994 dengue virus type-3 (DEN-3) isolates in Malaysia (DEN-3 was the most common type in Malaysia during this period). Nucleic acid sequences (720 nucleotides in length) from the nine isolates, encompassing the precursor of membrane protein (preM) and membrane (M) protein genes and part of the envelope (E) protein gene were aligned with various reference DEN-3 sequences to generate a neighbor-joining phylogenetic tree. According to the constructed tree, the nine Malaysian isolates were grouped into subtype II, which comprises Thai isolates from 1962 to 1987. Five earlier DEN-3 virus Malaysian isolates from 1974 to 1981 belonged to subtype I. The present data indicate that the recent dengue epidemic in Malaysia was due to the introduction of DEN-3 viruses previously endemic to Thailand.

Amino Acid Sequence↗
PubMed2000

A comparative study on the service profiles and practice facilities among urban general practices in east and west Malaysia.

1171 urban general practices in East and West Malaysia were compared regarding their service profiles and practice facilities. In general, practices in both parts put important emphasis on preventive health care. More practices in East Malaysia were providing hormone replacement therapy and sexually transmitted diseases services but less were providing intrapartum care, counselling services including sexual and marital counselling and problems associated with social deviance such as alcohol and drug abuse. Although most practices in East Malaysia were solo practices, they were more comprehensive in terms of the provision of practice facilities when compared to those in West Malaysia. A greater number of them had ultrasound facilities, peak flow meters, ECG machines, computers and blood biochemistry facilities.

Family Practice↗
PubMed2001

Chikungunya infection--an emerging disease in Malaysia.

Many countries neighboring Malaysia have reported human infections by chikungunya virus, a mosquito-borne togavirus belonging to the genus Alphavirus. However, although there is serological evidence of its presence in Malaysia, chikungunya virus has not been known to be associated with clinical illness in the country. An outbreak of chikungunya virus occurred in Klang, Malaysia, between December 1998 and February 1999. The majority of the cases were in adults and the clinical presentation was similar to classical chikungunya infections. Malaysia is heavily dependent on migrant workers from countries where chikungunya is endemic. It is speculated that the virus has been re-introduced into the country through the movement of these workers.

Alphavirus Infections↗
PubMed1992

Current status of malaria in Malaysia.

The Malaria Eradication Program was started in 1967 in Peninsular Malaysia. Since then and up to 1980, there was a reduction in the number of reported malaria cases from 160,385 in 1966 to 9,110 cases for Peninsular Malaysia. Although the concept of eradication has changed to one of control in the 1980, the anti-malaria activities have remained the same. However, additional supplementary activities such as the use of impregnated bednets, and the Primary Health Care approach, have been introduced in malarious and malaria-prone areas. Focal spraying activity is instituted in localities with outbreaks in both malaria-prone and non-malarious areas. Passive case detection has been maintained in all operational areas. In 1990, 50,500 cases of malaria were reported of which 69.7% (35,190) were from Sabah, 27.8% (14,066) from Peninsular Malaysia and 2.5% (1,244) from Sarawak. Until June 1991 a total of 18,306 cases were reported for the country. Plasmodium falciparum continues to be the predominant species, contributing to 69.6% of the parasites involved. The case fatality rate for 1990 was 0.09%. There were 43 deaths all of which were attributed to cerebral malaria. The problems faced in the prevention and control of malaria include problems associated with the opening of land for agriculture, mobility of the aborigines of Peninsular Malaysia (Orang Asli) and inaccessibility of malaria problem areas. There is need to ensure prompt investigation and complete treatment of cases especially in malarious areas. The promotion of community participation in control activities should be intensified. Primary Health Care should be continued and intensified in the malarious areas.(ABSTRACT TRUNCATED AT 250 WORDS)

Agriculture↗
PubMed2002

Outlook of dengue in Malaysia: a century later.

Dengue continues to be a major health threat to Malaysia a century after its first reported outbreak in 1902. Examination of the available outbreak data suggested that a major DF/DHF outbreak occurred in Malaysia in a cyclical pattern of approximately every 8 years. All four dengue virus serotypes are found co-circulating in Malaysia, but after the first and only major outbreak involving DEN-4 in 1960's, only DEN-1, DEN-2 and DEN-3 were associated with DF/DHF outbreaks. It is argued that perhaps the spread of the later dengue virus serotypes followed the pattern of spread of the mosquito vector Aedes aegypti, whereas the former was associated with Aedes albopictus, the outdoor and rural area dwelling mosquito. Estimating from the trend and pattern of dengue and the associated dengue virus serotypes, unless there is a major breakthrough in dengue vaccine development, it is likely that dengue outbreaks will continue to occur in Malaysia throughout the 21st century.

Aedes↗
PubMed1991

Review of sarcocystosis in Malaysia.

Sarcocystis is a tissue coccidian with an obligatory two-host life cycle. The sexual generations of gametogony and sporogony occur in the lamina propria of the small intestine of definitive hosts which shed infective sporocysts in their stools and present with intestinal sarcocystosis. Asexual multiplication occurs in the skeletal and cardiac muscles of intermediate hosts which harbor Sarcocystis cysts in their muscles and present with muscular sarcocystosis. In Malaysia, Sarcocystis cysts have been reported from many domestic and wild animals, including domestic and field rats, moonrats, bandicoots, slow loris, buffalo, and monkey, and man. The known definitive hosts for some species of Sarcocystis are the domestic cat, dog and the reticulated python. Human muscular sarcocystosis in Malaysia is a zoonotic infection acquired by contamination of food or drink with sporocysts shed by definitive hosts. The cysts reported in human muscle resembled those seen in the moonrat, Echinosorex gymnurus, and the long-tailed monkey, Macaca fascicularis. While human intestinal sarcocystosis has not been reported in Malaysia so far, it can be assumed that such cases may not be infrequent in view of the occurrence of Sarcocystis cysts in meat animals, such as buffalo. The overall seroprevalence of 19.8% reported among the main racial groups in Malaysia indicates that sarcocystosis (both the intestinal and muscular forms) may be emerging as a significant food-borne zoonotic infection in the country.

Animals↗
PubMed1986

Infant mortality decline in Malaysia, 1946-1975: the roles of changes in variables and changes in the structure of relationships.

This analysis has identified several factors contributing to the dramatic decline in infant mortality since World War II in Malaysia, as well as one factor that prevented the infant mortality rate from declining even more rapidly. Our main findings are the following: On average, mothers' education more than doubled over the study period, contributing to the decline in their infants' mortality. In addition, the beneficial effect of mothers' education on infant survival appears to have become stronger over the study period. Hence, further advances in education should lead to further improvements in infants' survival prospects. Another analysis of these data (Peterson et al. 1985) found that education is somewhat more influential in affecting child mortality in low-mortality, high-income areas than in the opposite type of areas. Therefore, socioeconomic development may have complemented, instead of substituted for, the the beneficial effect of mothers' education in promoting infant and child survival in Malaysia. Improvements in water and sanitation also contributed to the infant mortality decline, especially for babies who did not breastfeed. However, unlike education, these influences have become less important over time, especially for babies who are not breastfed. Hence, further improvements in water and sanitation, a goal of Malaysia's Rural Environmental Sanitation Programme, may have smaller relative effects on infant mortality than did previous improvements. Targeting such improvements on areas where women breastfeed little or not at all, however, will increase their effectiveness in promoting infant survival. The substantial reductions in breastfeeding that have taken place since World War II have kept the infant mortality rate in Malaysia from declining as rapidly as it would have otherwise. We estimate that, in our sample, the detrimental effects on infant survival of the decline in breastfeeding have more than offset the beneficial effects of improvements in water and sanitation. Unlike some other researchers (e.g., Palloni 1981), we find that changes in fertility levels and in the timing and spacing of births have had negligible effect in explaining the decline in infant mortality within the samples we have considered. We have excluded births to older women from our analysis, however; this exclusion may have led to an understatement of the influence of changes in the age pattern of childbearing.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗
PubMed1999

Identification of enterovirus 71 isolates from an outbreak of hand, foot and mouth disease (HFMD) with fatal cases of encephalomyelitis in Malaysia.

Thirteen enterovirus 71 (EV71) isolates were obtained from both fatal and non-fatal infections of patients seen in Peninsula Malaysia and in Sarawak during an outbreak of hand, foot and mouth disease (HFMD) in Malaysia in 1997, with incidences of fatal brainstem encephalomyelitis. The isolates were identified using immunofluorescence staining, neutralization assays, and partial sequencing of the 5' untranslated regions (UTR). Assessment of the potential genetic relationships of the isolates using the partial 5'UTR sequences suggested clustering of the isolates into at least two main clusters. Isolates from Peninsula Malaysia were found in both clusters whereas Sarawak-derived isolates clustered only in cluster II. Isolates derived from fatal infections, however, occurred in both clusters and no distinctive nucleotide sequences could be attributed to the fatal isolates. Examination of the nucleotide sequences revealed at least 13 nucleotide positions in all the isolates which differ completely from the previously reported EV71 5'UTR sequences. In addition, at least 11 nucleotide position differences within the 5'UTR were noted which differentiated cluster I from cluster II. Predicted secondary RNA structures drawn using the nucleotide sequences also suggested differences between isolates from the two clusters. These findings suggest the presence of at least two potentially virulent EV71 co-circulating in Malaysia during the 1997 HFMD outbreak.

5' Untranslated Regions↗
PubMed1988

A review of leptospirosis in Malaysia.

This paper reviews the literature on leptospirosis in Malaysia from its first description in 1928 until the present day. Most of the early reports were on investigations of leptospirosis in wildlife and man and up-to-date, thirty-seven leptospiral serovars from thirteen serogroups have been bacteriologically identified. The thirteen serogroups are: Australis, Autumnalis Bataviae, Canicola, Celledoni, Grippotyphosa, Hebdomadis, Icterohaemorrhagiae, Javanica, Pomona, Pyrogenes, Sejroe and Tarassovi. Rats have been ascribed as the principal maintenance host of leptospires in Malaysia. However, serovars from the Pomona, Pyrogenes and Sejroe serogroups have yet to be isolated from rats. It is considered that the majority of leptospirosis cases in man were due to association of man with an environment where rats were plentiful. Recent investigations on domestic animals disclosed a high prevalence of infection in cattle and pigs and they were suspected as being the maintenance host for serovar hardjo and pomona respectively. There is ample scope for research in leptospirosis, particularly in the epidemiology and control of the disease in domestic animals. The strategy to control the infection in domestic animals and man in Malaysia is bound to be different from that of the temperate countries, basically due to the presence of a large number of leptospiral serovars in wildlife, further confounded by geographical and financial constraints.

Animals↗
PubMed1996

Modelling of conspicuity-related motorcycle accidents in Seremban and Shah Alam, Malaysia.

Preliminary analysis of the short-term impact of a running headlights intervention revealed that there has been a significant drop in conspicuity-related motorcycle accidents in the pilot areas, Seremban and Shah Alam, Malaysia. This paper attempts to look in more detail at conspicuity-related accidents involving motorcycles. The aim of the analysis was to establish a statistical model to describe the relationship between the frequency of conspicuity-related motorcycle accidents and a range of explanatory variables so that new insights can be obtained into the effects of introducing a running headlight campaign and regulation. The exogenous variables in this analysis include the influence of time trends, changes in the recording and analysis system, the effect of fasting activities during Ramadhan and the "Balik Kampong" culture, a seasonal cultural-religious holiday activity unique to Malaysia. The model developed revealed that the running headlight intervention reduced the conspicuity-related motorcycle accidents by about 29%. It is concluded that the intervention has been successful in improving conspicuity-related motorcycle accidents in Malaysia.

Accidents, Traffic↗
PubMed1992

Has Malaysia's antidrug effort been effective?

It is a common belief that a massive effort in law enforcement, preventive education and rehabilitation will result in the elimination of a country's drug problem. Based on this premise. Malaysia in 1983 implemented such a multifaceted anti-drug strategy, and the results of a 1987 study by the author suggested that Malaysia's effort had begun to contribute to a steady decrease in the number of identified drug abusers. Although the number of drug-addicted individuals declined, the country's recidivism rates were still high. Because of this high relapse rate, Malaysia expanded their rehabilitation effort and developed a community transition program. In order to determine the impact of these changes on the country's battle against drug abuse, a follow-up study was conducted in 1990. The results of this study did not clearly demonstrate that the Malaysian effort had been successful in eliminating the problem of drug abuse, and raised some questions concerning the effectiveness of the country's drug treatment programs.

Cross-Cultural Comparison↗
PubMed2006

Comparison of the effectiveness of trauma services provided by secondary and tertiary hospitals in Malaysia.

STUDY OBJECTIVE: The trauma services provided by 6 hospitals operating at 2 levels of care (4 secondary or district general hospitals and 2 tertiary care hospitals) in Malaysia are compared in terms of mortality and disability for direct admissions to emergency departments to test the hypothesis that care at a tertiary care hospital is better than at a district general hospital. METHODS: All cases were recruited prospectively for 1 year. The hospitals were purposefully selected as typical for Malaysia. There are 3 primary outcome measures: death, musculoskeletal impairment, and disability at discharge. Adjustment was made for potential covariates and within-hospital clustering by using multivariable random-effects logistic regression analysis. RESULTS: For direct admissions, logistic-regression-identified odds of dying were associated with older age (>55 years), odds ratio (OR) 1.9 (95% confidence interval [CI] 1.3 to 2.8); head injury, OR 2.7 (95% CI 1.9 to 3.9); arrival by means other than ambulance, OR 0.6 (95% CI 0.4 to 0.8); severe injuries (Injury Severity Score >15) at a district general hospital, OR 45.2 (95% CI 27.0 to 75.7); severe injuries at a tertiary care hospital, OR 11.2 (95% CI 7.3 to 17.3); and admission to a tertiary care hospital compared to a district general hospital if severely injured (Injury Severity Score >15), OR 0.2 (95% CI 0.1 to 0.4). Admission to a tertiary care hospital was associated with increased odds of disability (OR 1.9; 95% CI 1.5 to 2.3) and musculoskeletal impairment (OR 3.5; 95% CI 2.7 to 4.4) at discharge. CONCLUSION: Care at a tertiary care hospital was associated with reduced mortality (by 83% in severe injuries), but with a higher likelihood of disability and impairment, which has implications for improving access to trauma services for the severely injured in Malaysia and other low- and middle-income settings.

Adult↗
PubMed2007

History of neurosciences at the School of Medical Sciences, Universiti Sains Malaysia.

Universiti Sains Malaysia is the only institution in Malaysia which incorporates all fields of the neurosciences under one roof. The integration of basic and clinical neurosciences has made it possible for this institution to become an excellent academic and research centre. This article describes the history, academic contributions and scientific progress of neurosciences at Universiti Sains Malaysia.

Education, Medical↗