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Fulltext Deep whole-genome sequencing of 100 southeast Asian Malays

Wong LP, Ong RT, Poh WT, Liu X, Chen P, Li R, et al.

Am J Hum Genet, 2013 Jan 10;92(1):52-66.
PMID: 23290073 DOI: 10.1016/j.ajhg.2012.12.005

Whole-genome sequencing across multiple samples in a population provides an unprecedented opportunity for comprehensively characterizing the polymorphic variants in the population. Although the 1000 Genomes Project (1KGP) has offered brief insights into the value of population-level sequencing, the low coverage has compromised the ability to confidently detect rare and low-frequency variants. In addition, the composition of populations in the 1KGP is not complete, despite the fact that the study design has been extended to more than 2,500 samples from more than 20 population groups. The Malays are one of the Austronesian groups predominantly present in Southeast Asia and Oceania, and the Singapore Sequencing Malay Project (SSMP) aims to perform deep whole-genome sequencing of 100 healthy Malays. By sequencing at a minimum of 30× coverage, we have illustrated the higher sensitivity at detecting low-frequency and rare variants and the ability to investigate the presence of hotspots of functional mutations. Compared to the low-pass sequencing in the 1KGP, the deeper coverage allows more functional variants to be identified for each person. A comparison of the fidelity of genotype imputation of Malays indicated that a population-specific reference panel, such as the SSMP, outperforms a cosmopolitan panel with larger number of individuals for common SNPs. For lower-frequency (<5%) markers, a larger number of individuals might have to be whole-genome sequenced so that the accuracy currently afforded by the 1KGP can be achieved. The SSMP data are expected to be the benchmark for evaluating the value of deep population-level sequencing versus low-pass sequencing, especially in populations that are poorly represented in population-genetics studies.

Matched MeSH terms: Population Groups/genetics
Comparison of patient survival between various subgroups among renal transplant patients: a single center experience

Go KW, Teo SM

Transplant Proc, 2004 Sep;36(7):2046-7.
PMID: 15518740

To compare patient graft survival between various subgroups among renal transplant patients.

Matched MeSH terms: Continental Population Groups
Clinical and pathologic differences between BRCA1-, BRCA2-, and non-BRCA-associated breast cancers in a multiracial developing country

Yip CH, Taib NA, Choo WY, Rampal S, Thong MK, Teo SH

World J Surg, 2009 Oct;33(10):2077-81.
PMID: 19649760 DOI: 10.1007/s00268-009-0146-8

Mutations in BRCA1 and BRCA2 confer an increased risk to breast and other cancers, but to date there have only been limited numbers of studies of BRCA1- and BRCA2-associated cancers among Asians. Malaysia is a multiracial country with three main races: Malays, Chinese, Indians. We determined whether tumor pathologic features and clinical features differ in patients with and without BRCA mutations in this Asian population.

Matched MeSH terms: Continental Population Groups
Racial differences in the prevalence of ulcerative colitis and Crohn's disease in Singapore

Lee YM, Fock K, See SJ, Ng TM, Khor C, Teo EK

J Gastroenterol Hepatol, 2000 Jun;15(6):622-5.
PMID: 10921415

BACKGROUND: The aim of this study was to determine the prevalence rates of inflammatory bowel disease in the different races in Singapore.
METHODS: The patients studied consisted of 58 people with an established diagnosis of ulcerative colitis (UC) and Crohn's disease (CD) as determined by a combination of clinical, radiological, endoscopic and histological criteria. The patients were residents of a well-defined geographical area in the northern part of Singapore and had been referred to the single regional hospital. Epidemiological data including sex, age, ethnicity, family history and disease type and extent were collected from case records and patient interviews.
RESULTS: There were 37 UC and 21 CD patients. Of the patients with UC, 67.5% were Chinese, 13.5% were Malay and 19% were Indian. The CD group consisted of 81% Chinese, 9.5% Malay and 9.5% Indian patients. The study population from which the patients were drawn was approximately 0.5 million in size.
CONCLUSIONS: The overall prevalence of UC was 6 per 100,000 and of CD was 3.6 per 100,000 in Singapore. There were disproportionately more Indians suffering from UC, with a prevalence of 16.2 per 100,000 in comparison with six per 100,000 for Chinese and seven per 100 000 for Malays. The relative risk of UC in Indians is 2.9-fold greater than for the Chinese (CI= 1.25-6.7) which was statistically significant. This trend was not seen for CD.

Matched MeSH terms: Continental Population Groups*
Fulltext Genetic variants in HBS1L-MYB with Hb subtypes level among Filipino β°-deletion carriers coinherited with -α3.7 deletion

Lim, L. N., Yu, K. S., Chua, S. M., George, E., Lai, M. I., Wong, L., et al.

Malaysian Journal of Medicine and Health Sciences, 2019;15(102):47-47.
MyJurnal

Introduction: Filipino β°-deletion is predominant among the β-thalassaemia patients in the indigenous population of Sabah, Malaysia particularly among the Kadazandusun. Individuals who co-inherit with α- and β-thalassaemia will demonstrate milder clinical symptoms with modified complete blood count (CBC) and Hb subtype parameters. HBS1L-MYB variants act as one of the key regulator of haematopoiesis and erythropoiesis and display strong association
with variation of HbF levels. Therefore, this study aims to evaluate the association between genetic variants in HBS1L-MYB with Hb subtypes level among Filipino β°-deletion carriers co-inherited with -α3.7 deletion. Methods: Filipino β°-deletion and -α3.7 deletion were identified using gap-polymerase chain reaction (PCR). A total of 34 subjects found with coinheritance of Filipino β°-deletion and -α3.7 deletion were subjected for HBS1L-MYB intergenic polymorphisms (HMIP) analysis. Hb subtypes level were quantified using BioRad Variant II Hb analyser. Genotyping of HBS1L-MYB variants rs9399137 and rs11759553 was done using own designed tetra primer ARMS-PCR. Results: The minor allele frequencies (MAF) of the two HMIP is found more than 0.05 (rs11759553, MAF=0.18 and rs9399137, MAF=0.15), indicating the significance of these variants among the study subjects. Significant difference was found between HbF level and HBS1L-MYB variant rs11759553 with p-value less than 0.05 (p=0.001). Subjects with homozygous genotype for rs11759553 (T/T) was found with higher HbF, followed by heterozygous (A/T) and wild type (A/A). rs11759553 and rs9399137 was found did not influence the level of HbA and HbA2. HMIP of rs11759553 and rs9399137 are found significant among Filipino β°-deletion carriers co-inherited with -α3.7deletion with its high minor allelic frequency and high HbF level. Strong association with HbF level was demonstrated when
coinheritance of rs11759553. Conclusion: This study demonstrates that there are significant associations between certain genetic variants in HBS1L-MYB with Hb subtypes level among Filipino β°-deletion carriers co-inherited with -α3.7 deletion.

Matched MeSH terms: Population Groups
Outcome of treatment in adult acute lymphoblastic leukaemia in an Asian population: comparison with previous multicentre German study

Bosco I, Teh A

Leukemia, 1995 Jun;9(6):951-4.
PMID: 7596183

Reports on the outcome of treatment in ALL in Asian (non-Caucasian) adults have been few, and published results compare very unfavourably with results of treatment from 'Western' centres. Seventy-four newly diagnosed Malaysian patients with ALL between the ages of 15 and 69 were treated from 1986 to 1990. The clinical features and prognostic factors were similar to those reported in 'Western' series. The chemotherapy protocol utilized was adapted from the one used by Hoelzer et al in the multicentre German study. The complete remission rate was 73%. The probability of continuous complete remission at 5 years was 29% with a median duration of remission of 15 months. This compares with Hoelzer's initial results of 77% CR rate and 35% CCR at 5 years. Patients with an initial white cell count of less than 30 x 10(9)/l at presentation were found to have a significantly better disease-free survival than those with a count of more than 30 x 10(9)/l (35 vs 22%, P = 0.026, univariate analysis). There was no difference in leukaemia-free survival according to age, sex, ethnic group, or immunophenotype. These results show that the use of moderately intensive chemotherapy protocols in Asian (non-Caucasian) patients achieves similar results to those used in Caucasians. We also showed that the difficulties in 'curing' approximately 70% of adult patient with ALL are universal.

Matched MeSH terms: Continental Population Groups
Fulltext Rickettsial seropositivity in the indigenous community and animal farm workers, and vector surveillance in Peninsular Malaysia

Kho KL, Koh FX, Hasan LI, Wong LP, Kisomi MG, Bulgiba A, et al.

Emerg Microbes Infect, 2017 Apr 12;6(4):e18.
PMID: 28400593 DOI: 10.1038/emi.2017.4

Rickettsioses are emerging zoonotic diseases that are often neglected in many countries in Southeast Asia. Rickettsial agents are transmitted to humans through exposure to infected arthropods. Limited data are available on the exposure of indigenous community and animal farm workers to the aetiological agents and arthropod vectors of rickettsioses in Peninsular Malaysia. Serological analysis of Rickettsia conorii and Rickettsia felis was performed for 102 individuals from the indigenous community at six rural villages and 87 workers from eight animal farms in Peninsular Malaysia in a cross-sectional study. The indigenous community had significantly higher seropositivity rates for R. conorii (P<0.001) and R. felis (P<0.001), as compared to blood donors from urban (n=61). Similarly, higher seropositivity rates for R. conorii (P=0.046) and R. felis (P<0.001) were noted for animal farm workers, as compared to urban blood donors. On the basis of the sequence analysis of gltA, ompA and ompB, various spotted fever group rickettsiae closely related to R. raoultii, R. heilongjiangensis, R. felis-like organisms, R. tamurae, Rickettsia sp. TCM1, R. felis, Rickettsia sp. LON13 and R. hulinensis were identified from tick/flea samples in animal farms, indigenous villages and urban areas. This study describes rickettsial seropositivity of the Malaysian indigenous community and animal farm workers, and provides molecular evidence regarding the presence of rickettsial agents in ticks/fleas infesting domestic animals in Peninsular Malaysia.

Matched MeSH terms: Population Groups*
Effect of apolipoprotein E variants on plasma lipids and apolipoproteins in the Orang Asli ('aborigines') of Malaysia

Gajra B, Candlish JK, Saha N, Mak JW, Tay JS

Hum. Hered., 1994 Jul-Aug;44(4):209-13.
PMID: 8056432

Members of the Semai group of Orang Asli ('aborigines') in peninsular Malaysia were examined for apolipoprotein E (apo E) variants in relation to plasma total cholesterol (TC), high density lipoprotein cholesterol, low density lipoprotein cholesterol (LDLC), triglycerides (TG), apolipoprotein AI and apolipoprotein B (apo B). The e2 and e4 alleles were found to be higher than in most other groups as reported. The sample as a whole was normotriglyceridaemic (mean plasma TG, 1.5 mmol/l) and very markedly hypocholesterolaemic (mean plasma TC 1.7 mmol/l). The distribution of apo E variants was not related to any of the plasma lipids or apolipoprotein fractions using results from all subjects, but if a distinctly hypertriglyceridaemic sub-section was omitted (TG > 1.7 mmol/l) then apo E variants were determinants of plasma TC, LDLC, and apo B concentrations, the lower values of these being associated with the 2-2 and 2-3 genotypes, and the higher with 3-4, and 4-4.

Matched MeSH terms: Continental Population Groups
Fulltext Obesity in multiracial schizophrenia patients receiving outpatient treatment in a regional tertiary hospital in malaysia

Norlelawati AT, Kartini A, Ramli M, Norsidah K, Wan Azizi WS, Tariq AR

East Asian Arch Psychiatry, 2012 Jun;22(2):49-56.
PMID: 22714874

OBJECTIVES. Obesity is an issue of concern among patients with schizophrenia as it is a co-morbid condition that is closely related to metabolic syndrome. The present study assessed the correlation of body mass index with antipsychotic use among multiracial schizophrenia outpatients. The study also compared the patients' body mass index with Malaysian Adult Nutrition Survey (MANS) data.
METHODS. A total of 216 participants were recruited into a cross-sectional study conducted over 5 months, from December 2010 to April 2011. Body weight and height were measured using the standard methods. Demographic data and treatment variables were gathered through interview or review of the medical records.
RESULTS. There were differences in mean body mass index between men and women (p = 0.02) and between Malay, Chinese and Indian races (p = 0.04). Stratified by sex, age, and race, the body mass index distributions of the patients were significantly different to those of the reference MANS population. The prevalence of obesity among patients was more than 2-fold greater than among the reference population in all variables. Although body mass index distribution was related to antipsychotic drugs (χ(2) = 33.42; p = 0.04), obesity could not be attributed to any specific drug.
CONCLUSION. The prevalence of obesity among patients with schizophrenia was significantly greater than that in the healthy Malaysian population, and affects the 3 main races in Malaysia.
Study site: Psychiatry Clinic, Tengku Ampuan Afzan Hospital, Kuantan, Pahang, Malaysia.

Matched MeSH terms: Continental Population Groups
Investigation of class characteristics in English handwriting of the three main racial groups: Chinese, Malay and Indian in Singapore

Cheng N, Lee GK, Yap BS, Lee LT, Tan SK, Tan KP

J Forensic Sci, 2005 Jan;50(1):177-84.
PMID: 15831016

This paper investigated the class characteristics in English handwriting of the Chinese, Malays and Indians in Singapore, many of whom learned their native language as a second language. One hundred and fifty-four handwriting exemplars were collected and features such as letter designs, pen-lifts, letter spacing and embellishments were studied. A number of characteristic features peculiar to the individual racial group were identified, which confirmed the impact of their native language writing systems on English handwriting.

Matched MeSH terms: Continental Population Groups*
Attitudes toward epilepsy in East Malaysia using the Public Attitudes Toward Epilepsy (PATE) scale

Chia ZJ, Lim KS, Fong SL, Sim RS, Rajahram GS, Narayanan V, et al.

Epilepsy Behav, 2020 09;110:107158.
PMID: 32512367 DOI: 10.1016/j.yebeh.2020.107158

BACKGROUND: Epilepsy stigma is an important issue affecting people with epilepsy (PWE) in various social aspects of life. Most studies on stigma were among the metropolitan population but rarely on indigenous people. Hence, this study aimed to understand the attitudes toward epilepsy of the East Malaysians, comparing with the West Malaysians previously reported.
METHOD: This study was performed among the indigenous people in Kuching and Sibu (Sarawak) and Kota Kinabalu (Sabah) using the Public Attitudes Toward Epilepsy (PATE) scale. A higher score indicates poorer attitude.
RESULT: A total of 360 respondents (41.7% Kadazan-Dusun, 30.6% Bidayuh, and 24.7% Iban) aged 34.6 ± 12.6 years completed the questionnaire. They were predominantly females and had lower education level and income compared with the West Malaysians. The Sabah population had significantly lower mean scores (better attitudes) than those in Sarawak, in both personal and general domains (p 

Matched MeSH terms: Population Groups/ethnology*; Population Groups/psychology
Homeostasis model assessment in a population with mixed ethnicity: the 1992 Singapore National Health Survey

Tai ES, Lim SC, Chew SK, Tan BY, Tan CE

Diabetes Res Clin Pract, 2000 Aug;49(2-3):159-68.
PMID: 10963828 DOI: 10.1016/s0168-8227(00)00152-2

We studied insulin resistance and beta-cell function with reference to ethnic group, glucose tolerance and other coronary artery disease risk factors in a cross section of the Singapore population which comprises Chinese, Malays and Asian Indians. 3568 individuals aged 18-69 were examined. Blood pressure, anthropometric data, blood lipids, glucose and insulin were assayed in the fasting state. Glucose and serum insulin were measured 2 h after an oral glucose challenge. Insulin resistance and beta-cell function were calculated using homeostasis model assessment. Asian Indians had higher insulin resistance than Chinese or Malays. Impaired glucose tolerance (IGT) and diabetes mellitus (DM) were associated with greater insulin resistance and impaired beta-cell function compared to normal glucose tolerance (NGT). Insulin resistance was positively correlated with blood pressure in women and total cholesterol, LDL cholesterol and triglyceride in both men and women. It was negatively correlated with HDL cholesterol and LDL/apolipoprotein B ratio. beta-cell function showed no significant correlations with the cardiovascular risk factors studied. It appears that both impaired beta-cell function and insulin resistance are important for the development of hyperglycemia whereas insulin resistance alone seems more important in the development of coronary artery disease as it correlates with several known coronary artery disease risk factors.

Matched MeSH terms: Continental Population Groups
Fulltext A second international cooperative investigation into tioacetazone side effects

Miller AB, Nunn AJ, Robinson DK, Fox W, Somasundaram PR, Tall R

Bull World Health Organ, 1972;47(2):211-27.
PMID: 4118761

As part of a large-scale international cooperative investigation into the side effects of thioacetazone-containing regimens in the treatment of tuberculosis, an evaluation has been made of the variation in the frequency of side effects between different countries and between different centres in the same country and of the likely reasons for this variation. In 3 countries patients of different racial origin were under observation in the same hospital. Over a 12-week period of treatment there was considerable variation between the countries and centres in the overall frequency of side effects and of those leading to a major departure from prescribed treatment, the variation being similar for the two thioacetazone-containing regimens and for the streptomycin plus isoniazid control regimen, though at a lower level for the latter. In Malaysia, Singapore, and Trinidad, where different racial groups were under treatment, there was no clear indication that race was an important factor in explaining the differences between countries, except for cutaneous side effects in Trinidad and possibly in Malaysia.It is concluded that the differences in the frequency of side effects to thioacetazone-containing regimens probably result from variation in the closeness of supervision of patients, in the recording and interpretation of side effects, and in environmental factors including the previous use of other medicaments or exposure to sensitizing substances.

Matched MeSH terms: Continental Population Groups
The birth weight of babies in the Federation of Malaya. Effect of race and of economic change

THOMSON FA

J Trop Pediatr Afr Child Health, 1962 Jun;8:3-9.
PMID: 13920973
Matched MeSH terms: Continental Population Groups*
Fulltext Recognizing life-threatening features of dengue in children and health seeking behavior in dengue emergency amongst parents and carers: A cross-sectional study in Gombak district, Malaysia

Ariffin F, Ramli AS, Naim N, Selamat MI, Syed-Jamal SJ

Med J Malaysia, 2014 Oct;69(5):210-5.
PMID: 25638233

Dengue is life-threatening and the paediatric population is highly susceptible to complications. Deterioration can occur rapidly and ability to recognise early warning signs is crucial. This study aims to determine the knowledge and awareness of parents and carers and to predict their ability in recognising life-threatening symptoms and signs of dengue in children and to assess their health-seeking behaviour in dengue emergency. Methods This is a crosssectional study involving parents and carers of children ≤ 12 years old in schools and kindergartens in the Gombak district. Demographic details, knowledge on life-threatening symptoms and signs of dengue and health-seeking behaviour were collected using a self-administered questionnaire and knowledge scoring was done. The questionnaire was pilot tested with a Cronbach alpha of 0.82. The results were analysed using SPSS version 20.0. Results Total respondents were 866 with 44.8% men and 55.2% women. The mean age was 40.3 years (SD ± 5.7). Knowledge score of dengue life threatening features among respondents were good (30.0%) to average (56.8%). Respondents were able to recognise fever (98.5%), petechial rash (97.1%) and bleeding (65.2%) but were less able to recognise abdominal pain (22.3%) and passing less urine (28.2%) as life threatening dengue features. However, the ability to recognise fever is a poor predictor in recognising life threatening dengue in children compared to all other symptoms which were good predictors. A respondent that recognise stomach pain or neck stiffness were five times more likely to recognise life-threatening dengue. Respondents preferred to bring their children to the clinic (50.8%) or hospital (37.8%) themselves Instead of calling for ambulance. Worryingly, some would give antipyretics (3.6%) or wait for improvements (7.8%). Conclusion Concerted efforts by the schools, healthcare professionals and health authorities are required to educate parents and carers to identify life-threatening features of dengue and to improve their health seeking-behaviour.

Matched MeSH terms: Population Groups
Experience of menopause in aboriginal women: a systematic review

Chadha N, Chadha V, Ross S, Sydora BC

Climacteric, 2016;19(1):17-26.
PMID: 26653073 DOI: 10.3109/13697137.2015.1119112

Every woman experiences the menopause transition period in a very individual way. Menopause symptoms and management are greatly influenced by socioeconomic status in addition to genetic background and medical history. Because of their very unique cultural heritage and often holistic view of health and well-being, menopause symptoms and management might differ greatly in aboriginals compared to non-aboriginals. Our aim was to investigate the extent and scope of the current literature in describing the menopause experience of aboriginal women. Our systematic literature review included nine health-related databases using the keywords 'menopause' and 'climacteric symptoms' in combination with various keywords describing aboriginal populations. Data were collected from selected articles and descriptive analysis was applied. Twenty-eight relevant articles were included in our analysis. These articles represent data from 12 countries and aboriginal groups from at least eight distinctive geographical regions. Knowledge of menopause and symptom experience vary greatly among study groups. The average age of menopause onset appears earlier in most aboriginal groups, often attributed to malnutrition and a harsher lifestyle. This literature review highlights a need for further research of the menopause transition period among aboriginal women to fully explore understanding and treatment of menopause symptoms and ultimately advance an important dialogue about women's health care.

Matched MeSH terms: Population Groups
Nutritional and socio-economic determinants of cognitive function and educational achievement of Aboriginal schoolchildren in rural Malaysia

Al-Mekhlafi HM, Mahdy MA, Sallam AA, Ariffin WA, Al-Mekhlafi AM, Amran AA, et al.

Br J Nutr, 2011 Oct;106(7):1100-6.
PMID: 21492493 DOI: 10.1017/S0007114511001449

A community-based cross-sectional study was carried out among Aboriginal schoolchildren aged 7-12 years living in remote areas in Pos Betau, Pahang, Malaysia to investigate the potential determinants influencing the cognitive function and educational achievement of these children. Cognitive function was measured by intelligence quotient (IQ), while examination scores of selected school subjects were used in assessing educational achievement. Blood samples were collected to assess serum Fe status. All children were screened for soil-transmitted helminthes. Demographic and socio-economic data were collected using pre-tested questionnaires. Almost two-thirds (67·6 %) of the subjects had poor IQ and most of them (72·6 %) had insufficient educational achievement. Output of the stepwise multiple regression model showed that poor IQ was significantly associated with low household income which contributed the most to the regression variance (r2 0·059; P = 0·020). Low maternal education was also identified as a significant predictor of low IQ scores (r2 0·042; P = 0·043). With educational achievement, Fe-deficiency anaemia (IDA) was the only variable to show significant association (r2 0·025; P = 0·015). In conclusion, the cognitive function and educational achievement of Aboriginal schoolchildren are poor and influenced by household income, maternal education and IDA. Thus, effective and integrated measures to improve the nutritional and socio-economic status of rural children would have a pronounced positive effect on their education.

Matched MeSH terms: Population Groups*
Rarity of cancer of the cervix in the Malaysian Orang Asli despite the presence of known risk factors

Sumithran E

Cancer, 1977 Apr;39(4):1570-2.
PMID: 856445

Cancer of the cervix is exceedingly uncommon in the Malaysian Orang Asli (aborigine), despite the presence of factors associated with an increased risk of developing this malignancy. In only three patients was the diagnosis of carcinoma of the cervix established, out of a total of nearly 18,000 female inpatients, admitted to the Gombak Orang Asli Hospital over a 13-year period. Over this same period, 81 female patients were diagnosed as having cancer. Interviews with female Orang Asli patients show the presence of alleged risk factors for cervical cancer, including early age of first intercourse, multiparity and non-circumcision of husbands. The low incidence of cancer of the cervix in this aborigine community may be due to the strict moral code of the Orang Asli, limiting extramarital sexual activity and associated venereal infection.

Matched MeSH terms: Continental Population Groups
An epidemiologic study of osteogenic sarcoma in Malaysia. Incidence in urban as compared with rural environments and in each of three separate racial groups, 1969-1972

Silva JF, Subramanian N

Clin Orthop Relat Res, 1975 Nov-Dec;?(113):119-27.
PMID: 1059509

To explore the possibility that environmental and/or genetic factors may yield clues to the etiology of osteogenic sarcoma, an epidemiologic retrospective study of all cases of osteogenic sarcoma in a country with clear geographic and racial variables (Malaysia) was conducted covering a 4-year period. Sixty-eight cases were identified (+85% of the predicted total). The incidence (cases per 100,000 population per year) was 0.11 in Malay, 0.23 in the Chinese, and 0.23 in the Indian. The urban versus rural incidence in the Malay was 0.22 versus 0.09, and in the Chinese 0.31 versus 0.18. The Indian population was too small when dividied into urban and rural segments to be significant.

Matched MeSH terms: Continental Population Groups
Fulltext A serological study of cytomegalovirus and herpes simplex virus infections in Peninsular Malaysia

Tan DS, Stern H

Bull World Health Organ, 1981;59(6):909-12.
PMID: 6279323

Healthy Malaysians from various parts of Peninsular Malaysia were examined for CF antibodies against cytomegalovirus (CMV) and herpes simplex virus (HSV) type 2. CMV antibodies were detected in 1114 out of 1556 persons (71.6%) and HSV antibodies were detected in 954 persons out of 1554 (61.4%). The age distribution patterns were similar for the two infections, with maximum prevalence at 5 - 14 years of age. Prevalence was higher in women than in men. There were no significant differences among the Malay, Chinese, and Indian groups of the population with respect to CMV, 72 - 78% possessing antibodies, but in the case of HSV, 76% of the Chinese had antibodies, compared with 57 - 60% of the Malays and Indians. More than 90% of newborn infants had CMV and HSV CF antibodies, confirming the highly immune status of childbearing women in Malaysia. No CMV-specific IgM was detected in the Malaysian neonates examined but this does not exclude the possibility of congenital infection.

Matched MeSH terms: Continental Population Groups

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