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Fulltext Foodborne diseases in Malaysia

Lim VKE

Med J Malaysia, 2002 Mar;57(1):1-2.
PMID: 14569712 MyJurnal
Matched MeSH terms: Foodborne Diseases/epidemiology*
Red tide and outbreak of paralytic shellfish poisoning in Sabah

Roy RN

Med J Malaysia, 1977 Mar;31(3):247-51.
PMID: 904522
Matched MeSH terms: Foodborne Diseases/epidemiology
Mass poisoning in Perak, Malaysia or the Tale of the Nine Emperor Gods and rat tail noodles

Chao TC, Maxwell SM, Lyen K, Wang D, Chia HK

J Forensic Sci Soc, 1991 Apr-Jun;31(2):283-8.
PMID: 1940842
Matched MeSH terms: Foodborne Diseases/epidemiology
Fulltext Effect of MyMAFI-A Newly Developed Mobile App for Field Investigation of Food Poisoning Outbreak on the Timeliness in Reporting: A Randomized Crossover Trial

Hamzah FH, Mohd Hairon S, Yaacob NM, Musa KI

Int J Environ Res Public Health, 2019 07 10;16(14).
PMID: 31295907 DOI: 10.3390/ijerph16142453

Prompt investigation of food poisoning outbreak are essential, as it usually involves a short incubation period. Utilizing the advancement in mobile technology, a mobile application named MyMAFI (My Mobile Apps for Field Investigation) was developed with the aim to be an alternative and better tool for current practices of field investigation of food poisoning outbreak. A randomized cross-over trial with two arms and two treatment periods was conducted to assess the effectiveness of the newly developed mobile application as compared to the standard paper-based format approach. Thirty-six public health inspectors from all districts in Kelantan participated in this study and they were randomized into two equal sized groups. Group A started the trial as control group using the paper-format investigation form via simulated outbreaks and group B used the mobile application. After a one-month 'washout period', the group was crossed over. The primary outcome measured was the time taken to complete the outbreak investigation. The treatment effects, the period effects and the period-by-treatment interaction were analyzed using Pkcross command in Stata software. There was a significant treatment effect with mean square 21840.5 and its corresponding F statistic 4.47 (p-value = 0.038), which indicated that the mobile application had significantly improve the reporting timeliness. The results also showed that there was a significant period effect (p-value = 0.025); however, the treatment by period interaction was not significant (p-value = 0.830). The newly developed mobile application-MyMAFI-can improve the timeliness in reporting for investigation of food poisoning outbreak.

Matched MeSH terms: Foodborne Diseases/epidemiology*
Fulltext Human and animal invasive muscular sarcocystosis in Malaysia--recent cases, review and hypotheses

Tappe D, Abdullah S, Heo CC, Kannan Kutty M, Latif B

Trop Biomed, 2013 Sep;30(3):355-66.
PMID: 24189667

Sarcocystosis, an unusual parasitic zoonotic disease, is caused by coccidian/ apicomplexan protozoa in humans and animals. The parasites usually develop in a heteroxenous predator-prey life-cycle involving final (carnivore) and intermediate (omnivore/herbivore) hosts. Besides the intestinal, non-invasive form of the disease in which humans and animals are the definitive hosts for certain Sarcocystis spp., the invasive form has come to recent attention. In the latter, humans and animals serve as intermediate host harbouring sarcocysts in their muscle tissue. Already in 1991 sarcocystosis was seen as a potential emerging food borne zoonosis in Malaysia, and in 2011 and 2012 the largest cluster of symptomatic human muscular sarcocystosis world-wide was reported from Tioman Island, Pahang state. In this review, we focus on invasive sarcocystosis in humans and animals in Malaysia, review the recorded cases and epidemiology, and present hypotheses.

Matched MeSH terms: Foodborne Diseases/epidemiology*
An update on diarrhoeal diseases in Malaysia

Ismail A

Southeast Asian J Trop Med Public Health, 1988 Sep;19(3):397-400.
PMID: 3217821

Analysis of diarrhoeal disease patterns in Malaysia from 1981-1986 suggested that infectious hepatitis ranked as the most predominant diarrhoeal disease followed by typhoid, food poisoning, dysentery and cholera. Although these five major food and water-borne diseases are still endemic in this country, diarrhoeal diseases per se no longer become an important public health problem in Malaysia. Enforcement of the cholera control program brought the incidence of the disease to a minimal. Unfortunately, this fatal form of diarrhoeal disease caused the greatest mortality compared to the others. Seasonal influence also played a part in controlling the occurrence of the disease. There was a preponderance of diarrhoeal diseases during the rainy season implicating contaminated water as a source of transmission. Although greater than half of the population has been supplied with piped water and sanitary latrines, a lot more has to be done before diarrhoeal diseases could be eliminated from this country.

Matched MeSH terms: Foodborne Diseases/epidemiology
Outbreak of Human Brucellosis from Consumption of Raw Goats' Milk in Penang, Malaysia

Leong KN, Chow TS, Wong PS, Hamzah SH, Ahmad N, Ch'ng CC

Am J Trop Med Hyg, 2015 Sep;93(3):539-41.
PMID: 26055742 DOI: 10.4269/ajtmh.15-0246

We report the largest outbreak of brucellosis in Penang, Malaysia. Brucellosis is not endemic in this region. The index case was a 45-year-old goat farm owner presented with 3 weeks of fever, headache, severe lethargy, poor appetite, and excessive sweating. He claimed to have consumed unpasteurized goat's milk that he had also sold to the public. Tests were negative for tropical diseases (i.e., dengue fever, malaria, leptospirosis and scrub typhus) and blood culture showed no growth. Based on epidemiological clues, Brucella serology was ordered and returned positive. Over a period of 1 year, 79 patients who had consumed milk bought from the same farm were diagnosed with brucellosis. Two of these patients were workers on the farm. Four laboratory staff had also contracted the disease presumably through handling of the blood samples. The mean duration from onset of symptoms to diagnosis was 53 days with a maximum duration of 210 days. A combination treatment of rifampin and doxycycline for 6 weeks was the first line of treatment in 90.5% of patients. One-third of the patients had sequelae after recovering and 21% had a relapse. We highlight the importance of Brucellosis as a differential diagnosis when a patient has unexplained chronic fever.

Matched MeSH terms: Foodborne Diseases/epidemiology*
Current intervention strategies for the microbial safety of sprouts

Sikin AM, Zoellner C, Rizvi SS

J Food Prot, 2013 Dec;76(12):2099-123.
PMID: 24290689 DOI: 10.4315/0362-028X.JFP-12-437

Sprouts have gained popularity worldwide due to their nutritional values and health benefits. The fact that their consumption has been associated with numerous outbreaks of foodborne illness threatens the $250 million market that this industry has established in the United States. Therefore, sprout manufacturers have utilized the U.S. Food and Drug Administration recommended application of 20,000 ppm of calcium hypochlorite solution to seeds before germination as a preventative method. Concentrations of up to 200 ppm of chlorine wash are also commonly used on sprouts. However, chlorine-based treatment achieves on average only 1- to 3-log reductions in bacteria and is associated with negative health and environmental issues. The search for alternative strategies has been widespread, involving chemical, biological, physical, and hurdle processes that can achieve up to 7-log reductions in bacteria in some cases. The compilation here of the current scientific data related to these techniques is used to compare their efficacy for ensuring the microbial safety of sprouts and their practicality for commercial producers. Of specific importance for alternative seed and sprout treatments is maintaining the industry-accepted germination rate of 95% and the sensorial attributes of the final product. This review provides an evaluation of suggested decontamination technologies for seeds and sprouts before, during, and after germination and concludes that thermal inactivation of seeds and irradiation of sprouts are the most practical stand-alone microbial safety interventions for sprout production.

Matched MeSH terms: Foodborne Diseases/epidemiology
ENTEROAGGREGATIVE ESCHERICHIA COLI O104 FROM THAI AND IMPORTED MALAYSIAN RAW BEEF

Wameadesa N, Sae-lim A, Hayeebilan F, Rattanachuay P, Sukhumungoon P

Southeast Asian J Trop Med Public Health, 2017 Mar;48(2):338-50.
PMID: 29642296

Local Thai and imported Malaysian beef in southern Thailand area carry
several Shiga toxin-producing Escherichia coli (STEC) serotypes. STEC O104 is an
important pathogen capable of causing outbreaks with considerable morbidity
and mortality. This study investigated the presence of E. coli O104 from local Thai
and imported Malaysian beef obtained from markets in Hat Yai City, Songkhla
Province during August 2015 - February 2016. Thirty-one E. coli O104 strains
were isolated from 12 beef samples (16% and 23% Thai and imported Malaysian,
respectively). Thirty strains possessed aggA (coding for a major component of
AAF/I fimbriae), a gene associated with enteroaggregative E. coli (EAEC) pathotype,
and all strains carried fimH (encoding Type 1 fimbriae). Thirty strains
belonged to phylogenetic group B1 and one strain (from Malaysian beef) to group
A. Agglutination of yeast cells was observed among 29 E. coli O104 strains. Investigation
of stx2 phage occupancy loci demonstrated that sbcB was occupied in 12
strains. Antimicrobial susceptibility assay revealed that 7 strains were resistant
to at least one antimicrobial agent and two were multi-drug resistant. One strain
carried extended spectrum β-lactamase gene blaCTX-M and three carried blaTEM. PFGE-generated DNA profiling showed identical DNA pattern between that of
one EAEC O104 strain from Thai beef and another from Malaysian beef, indicating
that these two strains originated from the same clone. This is the first report
in Thailand describing the presence of EAEC O104 from both Thai and imported
Malaysian beef and their transfer between both countries. Thorough surveillance
of this pathogen in fresh meats and vegetables should help to prevent any possible
outbreak of E. coli O104.

Matched MeSH terms: Foodborne Diseases/epidemiology*
Fulltext Review of the trends and causes of food borne outbreaks in Malaysia from 1988 to 1997

Meftahuddin T

Med J Malaysia, 2002 Mar;57(1):70-9.
PMID: 14569721 MyJurnal

This paper examines the trend and possible contributing factors for the occurrence of the food borne diseases outbreaks in Malaysia. These diseases mainly are cholera, typhoid fever, hepatitis A, dysentery and food poisoning. The outbreaks still occur sporadically in certain high risk areas throughout the country. The incidence rate of all the other three major food borne diseases steadily declined from the year 1988 to 1997 except for food poisoning and cholera. Statistic of food poisoning from the year 1996 to 1997 showed that 66.5% of the outbreak occurred in schools whereas only 0.4% originated from the contaminated food sold at various public food outlets. The school age group is always more affected than the general population. Amongst the contributing factors identified are related to unhygienic food handling practices followed by inadequate safe water supply and poor environmental sanitation. A multisectoral approach between Ministry of Health and other government agencies or private agents needs to be undertaken in the management of the food borne diseases in order to curb the incidences of food borne diseases in Malaysia.

Matched MeSH terms: Foodborne Diseases/epidemiology*
Fulltext One hypervirulent clone, sequence type 283, accounts for a large proportion of invasive Streptococcus agalactiae isolated from humans and diseased tilapia in Southeast Asia

Barkham T, Zadoks RN, Azmai MNA, Baker S, Bich VTN, Chalker V, et al.

PLoS Negl Trop Dis, 2019 06;13(6):e0007421.
PMID: 31246981 DOI: 10.1371/journal.pntd.0007421

BACKGROUND: In 2015, Singapore had the first and only reported foodborne outbreak of invasive disease caused by the group B Streptococcus (GBS; Streptococcus agalactiae). Disease, predominantly septic arthritis and meningitis, was associated with sequence type (ST)283, acquired from eating raw farmed freshwater fish. Although GBS sepsis is well-described in neonates and older adults with co-morbidities, this outbreak affected non-pregnant and younger adults with fewer co-morbidities, suggesting greater virulence. Before 2015 ST283 had only been reported from twenty humans in Hong Kong and two in France, and from one fish in Thailand. We hypothesised that ST283 was causing region-wide infection in Southeast Asia.
METHODOLOGY/PRINCIPAL FINDINGS: We performed a literature review, whole genome sequencing on 145 GBS isolates collected from six Southeast Asian countries, and phylogenetic analysis on 7,468 GBS sequences including 227 variants of ST283 from humans and animals. Although almost absent outside Asia, ST283 was found in all invasive Asian collections analysed, from 1995 to 2017. It accounted for 29/38 (76%) human isolates in Lao PDR, 102/139 (73%) in Thailand, 4/13 (31%) in Vietnam, and 167/739 (23%) in Singapore. ST283 and its variants were found in 62/62 (100%) tilapia from 14 outbreak sites in Malaysia and Vietnam, in seven fish species in Singapore markets, and a diseased frog in China.
CONCLUSIONS: GBS ST283 is widespread in Southeast Asia, where it accounts for a large proportion of bacteraemic GBS, and causes disease and economic loss in aquaculture. If human ST283 is fishborne, as in the Singapore outbreak, then GBS sepsis in Thailand and Lao PDR is predominantly a foodborne disease. However, whether transmission is from aquaculture to humans, or vice versa, or involves an unidentified reservoir remains unknown. Creation of cross-border collaborations in human and animal health are needed to complete the epidemiological picture.

Matched MeSH terms: Foodborne Diseases/epidemiology
Molecular analysis of Salmonella enteritidis by pulsed-field gel electrophoresis and ribotyping

Thong KL, Ngeow YF, Altwegg M, Navaratnam P, Pang T

J Clin Microbiol, 1995 May;33(5):1070-4.
PMID: 7615707

A total of 61 isolates of Salmonella enteritidis were analyzed by the techniques of pulsed-field gel electrophoresis (PFGE) and ribotyping. Twenty-three of the isolates were from Zurich, Switzerland, and 38 isolates were from the University Hospital, Kuala Lumpur, Malaysia. Five of the Malaysian isolates were hospital-related outbreak strains and were shown to be indistinguishable by PFGE analysis following digestion with three different restriction endonucleases, XbaI (5'-TCTAGA-3'), SpeI (5'-ACTAGT-3'), and AvrII (5'-CCTAGG-3'). The PFGE pattern of an isolate from a suspected carrier staff nurse was found to be identical to those of the hospital outbreak isolates. These isolates were also indistinguishable by ribotyping with SmaI and SphI. The same single PFGE pattern was also detected in 29 of 32 sporadic isolates of S. enteritidis. Four closely related ribotypes were detected among these 29 isolates. Similarly, outbreak-related strains from Switzerland showed close genetic identity by PFGE and ribotyping. Strains obtained from poultry showed more variations in their PFGE patterns and ribotypes, although the patterns were still closely related. In addition, SphI ribotypes A and D among the Swiss strains correlated with phage types 4 and 8, respectively. No correlation of phage types with PFGE pattern was noted. Both PFGE and ribotyping indicate that the S. enteritidis strains circulating in Malaysia and Switzerland are very similar and may be clonally related. Comparison of the PFGE patterns with the ribotypes for 23 Swiss and 16 Malaysian isolates showed that there was a 69% concordance in the grouping of isolates. We conclude that the close genetic similarity observed between epidemiologically unrelated and outbreak-related isolates of S. enteritidis suggests that both PFGE and ribotyping are of limited value in the epidemiological analysis of these particular isolates, possibly because of the highly clonal nature of pathogenic strains of S. enteritidis.

Matched MeSH terms: Foodborne Diseases/epidemiology
Fulltext Prevalence and antimicrobial resistance of Listeria, Salmonella, and Yersinia species isolates in ducks and geese

Jamali H, Radmehr B, Ismail S

Poult Sci, 2014 Apr;93(4):1023-30.
PMID: 24706981 DOI: 10.3382/ps.2013-03699

The aims of this study were to determine the prevalence and antimicrobial resistance of Listeria, Salmonella, and Yersinia spp. isolated from duck and goose intestinal contents. A total of 471 samples, including 291 duck and 180 goose intestinal contents, were purchased from wet markets between November 2008 and July 2010. Listeria, Salmonella, and Yersinia spp. were isolated from 58 (12.3%), 107 (22.7%), and 80 (17%) of the samples, respectively. It was concluded that Listeria ivanovii, Salmonella Thompson, and Yersinia enterocolitica were the predominant serovars among Listeria, Salmonella, and Yersinia spp., respectively. Moreover, resistance to tetracycline was common in Listeria (48.3%) and Salmonella spp. (63.6%), whereas 51.3% of the Yersinia spp. isolates were resistant to cephalothin. Therefore, continued surveillance of the prevalence of the pathogens and also of emerging antibiotic resistance is needed to render possible the recognition of foods that may represent risks and also ensure the effective treatment of listeriosis, salmonellosis, and yersiniosis.

Matched MeSH terms: Foodborne Diseases/epidemiology

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