MyMedR

Assessment of infectiousness of male Malaysian blood donors

So-Har T, Gladys LC, Ramli N

Vox Sang, 1983;45(5):389-91.

HBeAg and anti-HBe were determined in the blood of 189 male blood donors. The incidence of HBsAg was 6.9% while that for HBeAg and anti-HBe was 1.6 and 18%, respectively. Of the 13 samples positive for HBsAg, two (15.4%) were positive for HBe while six (46.2%) were positive for anti-HBe. One specimen was negative for HBsAg but was positive for HBeAg and anti-HBe. The observations are discussed.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Hepatitis in renal transplant recipients with and without donor-specific blood transfusion

Morad Z, Suleiman AB, Kong CT

Transplant Proc, 1989 Feb;21(1 Pt 2):1825-6.

PMID: 2652593

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

Trends in hepatitis B virus infection among blood donors in Kelantan, Malaysia: a retrospective study

Yousuf R, Rapiaah M, Ahmed SA, Rosline H, Salam A, Selamah S, et al.

Southeast Asian J. Trop. Med. Public Health, 2007 Nov;38(6):1070-4.

PMID: 18613548

The objective of this study was to determine the prevalence and trends in hepatitis B infection among blood donors attending the Transfusion Medicine Unit at the Hospital Universiti Sains Malaysia, Kelantan, Malaysia. A retrospective study was carried out by reviewing the results of HBsAg among blood donors for the years 2000 to 2004. During this period, 44,658 blood donors were studied. We noted that there was a significant difference in the prevalence of hepatitis B infection between regular and first time donors. There was also a decreasing trend noticed in both study groups. The mean prevalence was significantly different between first time (1.83%) and regular donors (0.45%) (p < 0.005). There is a need to improve public awareness programs to lower the incidence of hepatitis B infection in the general population and consequently first time blood donors. Future studies are also required to determine the trends and outcomes of these programs.

Matched MeSH terms: Hepatitis B Surface Antigens/blood; Hepatitis B Surface Antigens/isolation & purification

Hepatitis B markers in non-icteric medical patients in Malaysia

Tan DS, Zaini Rahman M, Fang R, Collett D, Ooi BG

Southeast Asian J. Trop. Med. Public Health, 1986 Jun;17(2):214-8.

PMID: 3538435

Sera were obtained from 494 non-icteric patients admitted with illnesses other than overt hepatitis into the medical wards of the rural and urban hospitals in Malaysia. They were tested for HBsAg, HBeAg, and anti-HBs by enzyme immunoassay. The overall HBsAg carrier rate was 18.0% ranging from 9.6% in children, (10 years and under), to a maximum of 23.5% in the adolescents (11 to 20 years), the rates decreasing subsequently to 16.5% and 20.8% in the adult and middle-age groups, respectively. The Chinese (18.6%) and Malays (19.9%) had similar HBsAg carrier rates but the rate in the Indians (9.0%) was distinctly lower. Similar rates were observed in the males (16.5%) and the females (19.8%). The carrier rate was 17.1% in rural patients compared with 21.4% in the urban ones. The 'e' antigen was found in 14 of the 89 HBsAg carriers (15.7%). The overall prevalence was 14/494 (2.8%) rising sharply from childhood (2.9%) to adolescence (5.3%), subsequently declining with advancing age. The Chinese had the highest rate (6.2%) followed by the Indians (1.5%) and the Malays (1.1%). Males had a rate of 3.3% compared to the females with 2.3%. Anti-HBs was found in 33.8% of the patients, increasing steadily from childhood (18.3%) to middle-age (46.4%). The Chinese had a higher prevalence rate (41.6%) than the Indians (32.8%) and the Malays (29.3%). The rates were similar for the males (35.6%) and the females (31.5%). Rural patients (46.1%) had a higher rate than urban patients (35.7%). Both areas showed rising prevalence with increasing age.(ABSTRACT TRUNCATED AT 250 WORDS)

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

Delta hepatitis in Malaysia

Sinniah M, Dimitrakakis M, Tan DS

Southeast Asian J. Trop. Med. Public Health, 1986 Jun;17(2):229-33.

PMID: 3787309

Sera from one hundred and fifty nine Malaysian individuals were screened for the prevalence of delta markers. These included 15 HBsAg positive homosexuals, 16 acute hepatitis B cases, 9 chronic hepatitis B patients, 13 healthy HBsAg carriers and 106 intravenous (i.v.) drug abusers, of whom 27 were positive for HBsAg only and the rest were anti-HBc IgG positive but HBsAg negative. The prevalence of delta markers in the homosexuals was found to be 6.7%, in the HBsAg positive drug abusers 17.8%, in acute hepatitis B cases 12.5%. No evidence of delta infection was detected in healthy HBsAg carriers, chronic hepatitis B cases and HBsAg negative i.v. drug abusers. With reference to i.v. drug abusers, the prevalence of delta markers was higher in Malays (23%) than in Chinese (7%) although the latter had a higher HBsAg carrier rate. Although the HBsAg carrier rate in the homosexuals was high, their delta prevalence rate was low as compared to drug abusers. In Malaysia, as in other non-endemic regions, hepatitis delta virus transmission appeared to occur mainly via the parenteral and sexual routes. This is the first time in Malaysia that a reservoir of delta infection has been demonstrated in certain groups of the population at high risk for hepatitis B.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Markers of hepatitis B virus infection in asymptomatic drug abusers in Malaysia

Mangalam S, Tan DS, Vijayamalar B, Collett D, Fang R

Southeast Asian J. Trop. Med. Public Health, 1986 Jun;17(2):209-13.

PMID: 3787308

Sera from 200 Malaysian male drug abusers were tested for markers of Hepatitis B virus (HBV) infection, viz. HBsAg, HBeAg, anti-HBs and anti-HBc using commercially available enzyme immunoassay (EIA) kits supplied by Abbot Laboratories, Chicago. Of these, 103 (51.5%) were positive for at least one HBV marker, 11 (5.5%) were positive for HBsAg; 4 (2%) for HBeAg, 74 (37%) for anti-HBs and 85 (42.5%) for anti-HBc. The HBsAg carrier rate was roughly the same as the carrier rate in the general population of Malaysia. The majority of drug abusers (95%) have had subclinical, asymptomatic HBV infection. Racially the Malay drug abusers had the highest exposure rate (54.2%). The HBsAg carrier rate was highest in the Chinese drug abusers (15.3%) and lowest in the Indians (0%). The mean age for the HBsAg carriers was found to be 26 years with a mean duration of drug abuse of 72 months. The Malaysian Anti-Narcotics Task Force of the National Security Council reported in the Malay Mail (July 13, 1985) that there were about 106,000 identified drug abusers in Malaysia and that 63% of these were in the 20-29 age groups. It appears from our study that this age group also coincides with the period of high HBsAg carrier rate. Age wise, those less than 21 years old had the highest HBsAg (11%) and HBeAg (5.6%) prevalence rates indicating high infectivity. After the age of 30 years, nearly 50% of the drug abusers appear to be immune with the HBe prevalence of 0%.(ABSTRACT TRUNCATED AT 250 WORDS)

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

HBeAG and anti-HBe in the Malaysian population and in Malaysian prisoners

Ton SH, Lopez CG, Noriah R

Southeast Asian J. Trop. Med. Public Health, 1983 Jun;14(2):252-4.

PMID: 6635764

The incidence of HBsAg in random blood donors was found to be twice that of the prisoner population. The anti-HBe however, was about twice that in the prisoners when compared with the random blood donors. Both the random blood donors and the prisoners had similar incidence of HBeAg. The percentage frequency of HBsAg positivity with anti-HBe positivity was also similar in both groups. The 18 normal non-blood donors did not have HBsAg, HBeAg or anti-HBe.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Organization of a blood transfusion service in tropical areas

Lopez CG

Southeast Asian J. Trop. Med. Public Health, 1979 Jun;10(2):177-83.

PMID: 524138

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Prevalence of anti-HBc in Malaysian male blood donors and its correlation with DNA polymerase activity

Ton SH, Lopez CG, Hasnah H

Southeast Asian J. Trop. Med. Public Health, 1979 Mar;10(1):1-6.

PMID: 483004

A study of Kuala Lumpur blood donors for HBsAG, anti-HBc and DNA polymeraes showed that 5.5% in the sample population was positive for HBsAG, 50.1% for anti-HBc and 10.1% for DNA polymerase activity. There was no significant difference of the HBsAG among the Malay, Chinese and Indian groups. However, a significant difference was observed for the anti-HBc and DNA polymerase activity between the Indian and the Malay/Chinese groups. Both analysis were significantly lower in the Indians but there was no significant difference between the Chinese and the Malays.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Fulltext Seroprevalence of Hepatitis B Among HIV-infected Children and Adolescents Receiving Antiretroviral Therapy in the TREAT Asia Pediatric HIV Observational Database

Aurpibul L, Kariminia A, Vibol U, Fong MS, Le ON, Hansudewechakul R, et al.

Pediatr Infect Dis J, 2018 Aug;37(8):788-793.

PMID: 29846357 DOI: 10.1097/INF.0000000000001901

BACKGROUND: Hepatitis B (HBV)-HIV coinfection is associated with liver inflammation, which can progress to liver fibrosis/cirrhosis and hepatocellular carcinoma. We determined HBV seroprevalence in children and adolescents participating in the TREAT Asia Pediatric HIV Observational Database.

METHODS: A multisite cross-sectional study was conducted in HIV-infected patients currently <25 years old receiving antiretroviral treatment (ART) who had HBV surface antigen (HBsAg), or HBV surface antibody (anti-HBs) or HBV core antibody (anti-HBc) tested during 2012-2013. HBV coinfection was defined as having either a positive HBsAg test or being anti-HBc positive and anti-HBs negative, reflective of past HBV infection. HBV seroprotection was defined as having a positive anti-HBs test.

RESULTS: A total of 3380 patients from 6 countries (Vietnam, Thailand, Cambodia, Malaysia, Indonesia and India) were included. The current median (interquartile range) age was 11.2 (7.8-15.1) years. Of the 2755 patients (81.5%) with HBsAg testing, 130 (4.7%) were positive. Of 1558 (46%) with anti-HBc testing, 77 (4.9%) were positive. Thirteen of 1037 patients with all 3 tests were anti-HBc positive and HBsAg and anti-HBs negative. One child was positive for anti-HBc and negative for anti-HBs but did not have HBsAg tested. The prevalence of HBV coinfection was 144/2759 (5.2%) (95% confidence interval: 4.4-6.1). Of 1093 patients (32%) with anti-HBs testing, 257 (23.5%; confidence interval: 21.0-26.0) had positive tests representing HBV seroprotection.

CONCLUSIONS: The estimated prevalence of HBV coinfection in this cohort of Asian HIV-infected children and adolescents on ART was 5.2%. The majority of children and adolescents tested in this cohort (76.5%) did not have protective HBV antibody. The finding supports HBV screening of HIV-infected children and adolescents to guide revaccination, the use of ART with anti-HBV activity and future monitoring.

Matched MeSH terms: Hepatitis B Surface Antigens/blood

Fulltext Preventing Mother-to-child Transmission of Hepatitis B Virus - A Success Story Which Can Be Enhanced

Tan SS, Chua A

Med J Malaysia, 2013 Apr;68(2):103-4.

PMID: 23629552

Matched MeSH terms: Hepatitis B Surface Antigens*

Fulltext Hepatitis B seroprevalence among University of Malaya Students in the Post-universal Infant Vaccination Era

Ng KP, Ngeow YF, Rozainah K, Rosmawati M

Med J Malaysia, 2013 Apr;68(2):144-7.

PMID: 23629561 MyJurnal

A nationwide HBV vaccination for neonates in the Expanded Programme on Immunization (EPI) was implemented in Malaysia in 1989. The objective of this study was to investigate the prevalence of HBsAg, anti-HBs and anti-HBc among the new student intakes in the Faculties of Medicine and Dentistry, University of Malaya from 2005 to 2011.

Matched MeSH terms: Hepatitis B Surface Antigens

Fulltext Hepatitis B surface antigen subtypes in hepatitis B seropositive subjects in University Hospital, Kuala Lumpur

Ng KP, Saw TL

Med J Malaysia, 1999 Sep;54(3):352-7.

PMID: 11045062

Hepatitis B surface antigen can be serologically defined as ayw1, ayw2, ayw3, ayw4, ayr, adw2, adw4 and adrq+ or adrq-. A study of common HBsAg subtypes in 44 HBsAg reactive sera in University Hospital was conducted using a solid-phase sandwich EIA. Eleven samples were found not typable and among the 33 typable HBsAg reactive sera, 3 HBsAg subtypes: adw, adr and ayw were identified. Subtype adw was found in 66.7% (22/33) of the typable HBsAg reactive sera; 24.2% (8/33) was of subtype adr and 6.0% (2/33) of subtype ayw. One sample was found to be reactive to both adw and adr. HBsAg subtype adw was found more commonly in Chinese but among the Malays, HBsAg subtype adr appeared to predominate. However, the small sample size precludes firm conclusions on the predominant subtype among the Malays.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

Fulltext The prevalence of hepatitis B surface antigen and anti-HCV antibody in paediatric oncology patients in Hospital Universiti Sains Malaysia

Menon BS, Aiyar S

Med J Malaysia, 1997 Dec;52(4):331-4.

PMID: 10968109

This study examined the prevalence of hepatitis B and C markers in 55 paediatric oncology patients who had completed treatment at the Hospital Universiti Sains Malaysia in Kota Baru. All these children had received blood products and had been treated between 1985-1996. Forty seven per cent of patients were positive for hepatitis B or C. Twenty nine per cent were positive for hepatitis C and twenty two per cent were HBsAg positive. Two children were positive for both and none were HIV positive. Four children had an elevated ALT level and one child had jaundice and hepatomegaly. Some children were marker-positive despite immunization and screening of blood.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

Fulltext Concurrence of hepatitis B surface antigen and antibody in acute and chronic hepatitis B cases

Ng KP, Saw TL

Med J Malaysia, 1994 Jun;49(2):117-21.

PMID: 8090089

A total of 250 hepatitis B surface antigen positive sera were screened for antibody to hepatitis B surface antigen. It was found that seven (3%) sera showed concurrently circulating surface antigen and surface antibody to hepatitis B virus. The level of antibody to surface antigen was not affected by HBeAg and most of the cases were found in chronic hepatitis B carriers.

Matched MeSH terms: Hepatitis B Surface Antigens/blood*

Fulltext Hepatitis B in jaundiced neonates admitted to a special care nursery

Nem-Yun B, Isahak I

Med J Malaysia, 1988 Jun;43(2):162-5.

PMID: 3237132

Matched MeSH terms: Hepatitis B Surface Antigens/analysis

Fulltext Hepatitis B markers in heterosexuals involved in promiscuous sexual activity

Rajakumar MK, Ton SH, Lim KF, Oorloff KH

Med J Malaysia, 1984 Mar;39(1):65-8.

PMID: 6513842

179 heterosexuals, selected for VDRL testing on the basis of a history of involvement in promiscuous sexual activity, mainly prostitution, had their serum also tested for hepatitis B infection markers, HBsAg, HBeAg and anti-HBe. 51 samples (29%) were found to be positive for at least one of the three markers, at levels higher than the already high levels in voluntary random blood donors in Malaysia.

Matched MeSH terms: Hepatitis B Surface Antigens/analysis*

Fulltext Hepatitis B infection in multitransfused thalassaemics

George E, Ilina I, Yasmin AM, George R, Duraisamy G

Med J Malaysia, 1988 Dec;43(4):284-7.

PMID: 3241594

Matched MeSH terms: Hepatitis B Surface Antigens/blood

Fulltext Epidemiological features of hepatitis B virus infection in Malaysians

Ross IN, Dass PK, Thavarasah AS, Noor SS

Med J Malaysia, 1988 Dec;43(4):278-83.

PMID: 3241593

Matched MeSH terms: Hepatitis B Surface Antigens/blood

Hepatitis B virus infection: Epidemiology and seroprevalence rate amongst Negrito tribe in Malaysia

Sahlan N, Fadzilah MN, Muslim A, Shaari SA, Abdul Rahman T, Hoh BP

Med J Malaysia, 2019 08;74(4):320-325.

PMID: 31424040

INTRODUCTION: Prevalence of Hepatitis B virus (HBV) infection among the non-indigenous people in Malaysia has been well established and range between 3% and 5%. However, data from the indigenous (Orang Asli) people is still lacking. The Negrito population is the most remotely located Orang Asli tribe with limited access to health care facilities. This study was undertaken to determine the epidemiology and seroprevalence of HBV infection among the Negrito.

METHODS: Surveys were conducted in five Negrito settlements in Kelantan and Perak states in Malaysia. A total of 150 participants were recruited. Clinical history was taken and physical examination was performed. Five millilitres of whole blood were collected and tested for hepatitis B surface antigen (HBsAg) using electrochemiluminescence immunoassay.

RESULTS: Participants were mainly from the Bateq (49.3%) and Mendriq (29.4%) sub-tribes. Overall, 13 subjects (8.7 %); nine males and four females were HBsAg positive. Nine of the HBsAg positive subjects were ≥35 years old. All of them had history of home deliver without evidence of antenatal record. Six (46%) of the HBsAg positive subjects had tattoo and body piercing in the past.

CONCLUSION: The prevalence of HBV infection rate amongst the Negrito tribe is almost three-fold compared to the national rates. The reason for this finding remains unclear. Tattooing, body piercing and vertical transmission could be the main possible routes of transmission of HBV among the Negrito population in Malaysia.

Matched MeSH terms: Hepatitis B Surface Antigens/blood

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