2.Factors influencing protective behaviours during haze episodes in Singapore: A population-based study.
Kennedy Y Y NG ; Wesley YEUNG ; Ka Lon SOU ; Jie Xin LIM ; Sai LIANG ; Ryan K J LEE ; Nigel J M FONG ; Alex LUA ; Xinqi LOOK ; Julia ANN-LEE ; Yun Hao LEONG ; Claudia CHONG ; Kai Yun ANG ; Cheryl LIE ; Amanda CHIN ; Judy Gek Khim SNG ; Bee Choo TAI
Annals of the Academy of Medicine, Singapore 2021;50(7):514-526
INTRODUCTION:
Haze is a recurrent problem in Southeast Asia. Exposure to haze is linked to ophthalmic, respiratory and cardiovascular diseases, and mortality. In this study, we investigated the role of demographic factors, knowledge and perceived risk in influencing protective behaviours during the 2013 haze in Singapore.
METHODS:
We evaluated 696 adults in a cross-sectional study. Participants were sampled via a 2-stage simple random sampling without replacement from a large residential district in Singapore in 2015. The questionnaire measured the participant's knowledge, perceived risk and behaviours during the Southeast Asian haze crisis in 2013. Reliability and validity of the questionnaire were assessed using comparative fit index (≥0.96) and root mean square error of approximation (≤0.05). We performed structural equation modelling to examine the relationship between the hypothesised factors and protective behaviours.
RESULTS:
More than 95% of the individuals engaged in at least 1 form of protective behaviour. Knowledge was strongly associated with protective behaviours via direct effect (β=0.45, 95% CI 0.19-0.69,
CONCLUSION
Knowledge was associated with protective behaviours, suggesting the importance of public education. Efforts should target those of lower education level and smokers. The wearing of N95 masks correlates with uptake of other protective behaviours.
Adult
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Asia, Southeastern
;
Cross-Sectional Studies
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Ethnic Groups
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Humans
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Minority Groups
;
Reproducibility of Results
;
Singapore/epidemiology*
3.Modeling the Dynamics and Control of Transmission of Schistosoma japonicum and S. mekongi in Southeast Asia.
Hirofumi ISHIKAWA ; Hiroshi OHMAE
The Korean Journal of Parasitology 2009;47(1):1-5
A mathematical model for transmission of schistosomes is useful to predict effects of various control measures on suppression of these parasites. This review focuses on epidemiological and environmental factors in Schistosoma japonicum and Schistosoma mekongi infections and recent advances in mathematical models of Schistosoma transmission.
Animals
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Asia, Southeastern/epidemiology
;
*Communicable Disease Control
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Disease Reservoirs/parasitology
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Humans
;
Models, Theoretical
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Schistosoma/*physiology
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Schistosomiasis/epidemiology/parasitology/*transmission
5.On the trails of markers and proxies: the socio-cognitive technologies of human movement, knowledge assemblage, and their relevance to the etiology of nasopharyngeal carcinoma.
Chinese Journal of Cancer 2011;30(2):85-95
Bacteria, pigs, rats, pots, plants, words, bones, stones, earrings, diseases, and genetic indicators of all varieties are markers and proxies for the complexity of interweaving trails and stories integral to understanding human movement and knowledge assemblage in Southeast Asia and around the world. Understanding human movement and knowledge assemblage is central to comprehending the genetic basis of disease, especially of a cancer like nasopharyngeal carcinoma. The problem is that the markers and trails, taken in isolation, do not all tell the same story. Human movement and knowledge assemblage are in constant interaction in an adaptive process of co-production with genes, terrain, climate, sea level changes, kinship relations, diet, materials, food and transport technologies, social and cognitive technologies, and knowledge strategies and transmission. Nasopharyngeal carcinoma is the outcome of an adaptive process involving physical, social, and genetic components.
Americas
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epidemiology
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Archaeology
;
Asia, Southeastern
;
epidemiology
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Biomarkers, Tumor
;
analysis
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China
;
epidemiology
;
Emigration and Immigration
;
Humans
;
Knowledge
;
Nasopharyngeal Neoplasms
;
epidemiology
;
etiology
;
genetics
;
Pacific Islands
;
epidemiology
6.Foodborne Intestinal Flukes in Southeast Asia.
Jong Yil CHAI ; Eun Hee SHIN ; Soon Hyung LEE ; Han Jong RIM
The Korean Journal of Parasitology 2009;47(Suppl):S69-S102
In Southeast Asia, a total of 59 species of foodborne intestinal flukes have been known to occur in humans. The largest group is the family Heterophyidae, which constitutes 22 species belonging to 9 genera (Centrocestus, Haplorchis, Heterophyes, Heterophyopsis, Metagonimus, Procerovum, Pygidiopsis, Stellantchasmus, and Stictodora). The next is the family Echinostomatidae, which includes 20 species in 8 genera (Artyfechinostomum, Acanthoparyphium, Echinochasmus, Echinoparyphium, Echinostoma, Episthmium, Euparyphium, and Hypoderaeum). The family Plagiorchiidae follows the next containing 5 species in 1 genus (Plagiorchis). The family Lecithodendriidae includes 3 species in 2 genera (Phaneropsolus and Prosthodendrium). In 9 other families, 1 species in 1 genus each is involved; Cathaemaciidae (Cathaemacia), Fasciolidae (Fasciolopsis), Gastrodiscidae (Gastrodiscoides), Gymnophallidae (Gymnophalloides), Microphallidae (Spelotrema), Neodiplostomidae (Neodiplostomum), Paramphistomatidae (Fischoederius), Psilostomidae (Psilorchis), and Strigeidae (Cotylurus). Various types of foods are sources of human infections. They include freshwater fish, brackish water fish, fresh water snails, brackish water snails (including the oyster), amphibians, terrestrial snakes, aquatic insects, and aquatic plants. The reservoir hosts include various species of mammals or birds.The host-parasite relationships have been studied in Metagonimus yokogawai, Echinostoma hortense, Fasciolopsis buski, Neodiplostomum seoulense, and Gymnophalloides seoi; however, the pathogenicity of each parasite species and host mucosal defense mechanisms are yet poorly understood. Clinical aspects of each parasite infection need more clarification. Differential diagnosis by fecal examination is difficult because of morphological similarity of eggs. Praziquantel is effective for most intestinal fluke infections. Continued efforts to understand epidemiological significance of intestinal fluke infections, with detection of further human cases, are required.
Animals
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Asia, Southeastern/epidemiology
;
*Food Parasitology
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Humans
;
Intestines/*parasitology
;
Trematoda/classification/genetics/*isolation & purification/pathogenicity
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Trematode Infections/diagnosis/*epidemiology/*parasitology/therapy
8.Cancer Control Programs in East Asia: Evidence From the International Literature.
Journal of Preventive Medicine and Public Health 2014;47(4):183-200
Cancer is a major cause of mortality and morbidity throughout the world, including the countries of North-East and South-East Asia. Assessment of burden through cancer registration, determination of risk and protective factors, early detection and screening, clinical practice, interventions for example in vaccination, tobacco cessation efforts and palliative care all should be included in comprehensive cancer control programs. The degree to which this is possible naturally depends on the resources available at local, national and international levels. The present review concerns elements of cancer control programs established in China, Taiwan, Korea, and Japan in North-East Asia, Viet Nam, Thailand, Malaysia, and Indonesia as representative larger countries of South-East Asia for comparison, using the published literature as a guide. While major advances have been made, there are still areas which need more attention, especially in South-East Asia, and international cooperation is essential if standard guidelines are to be generated to allow effective cancer control efforts throughout the Far East.
Asia, Southeastern
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Databases, Factual
;
Far East
;
Humans
;
Incidence
;
Neoplasms/diagnosis/epidemiology/*prevention & control
;
Periodicals as Topic
;
Public Policy
;
Registries
;
Risk Factors
;
Smoke-Free Policy
9.Epidemiology and Clinical Characteristics of Zika Virus Infections Imported into Korea from March to October 2016.
Doran YOON ; Seung Hwan SHIN ; Hee Chang JANG ; Eu Suk KIM ; Eun Hee SONG ; Song Mi MOON ; So Youn SHIN ; Pyeong Gyun CHOE ; Jung Joon SUNG ; Eun Hwa CHOI ; Myoung Don OH ; Youngmee JEE ; Nam Joong KIM
Journal of Korean Medical Science 2017;32(9):1440-1444
Zika is a re-emerging, mosquito-borne viral infection, which has been recently shown to cause microcephaly and Guillain-Barré syndrome. Since 2015 the number of infected patients has increased significantly in South America. The purpose of this study was to identify the epidemiologic and clinical characteristics of patients with Zika virus (ZIKV) infections in Korea. Patients who had visited areas of risk and tested positive in the ZIKV reverse transcriptase polymerase chain reaction (RT-PCR) in blood, urine, or saliva specimens were included. The first Korean case of ZIKV infection was reported in March 2016, and 14 cases had been reported by October 2016. The median age of the patients was 34 years (19–64 years). Ten patients had been exposed in Southeast Asia and 4 in Latin America. Rash was the most common symptom (92.9%; 13/14), followed by myalgia (50.0%; 7/14), and arthralgia (28.6%, 4/14). There were no neurologic abnormalities and none of the patients was pregnant. Results of biochemical tests were normal. Positivity rates of RT-PCR for ZIKV in serum, urine, and saliva were 53.8%, 100.0%, and 83.3%, respectively in the first week of symptoms. In conclusion, 14 patients with ZIKV infections were reported in Korea by October 2016 and all of them had mild clinical symptoms.
Arthralgia
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Asia, Southeastern
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Epidemiology*
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Exanthema
;
Guillain-Barre Syndrome
;
Humans
;
Korea*
;
Latin America
;
Microcephaly
;
Myalgia
;
Reverse Transcriptase Polymerase Chain Reaction
;
Saliva
;
South America
;
Virus Shedding
;
Zika Virus*
10.Plasmodium knowlesi as a Threat to Global Public Health.
Roland WESOLOWSKI ; Alina WOZNIAK ; Celestyna MILA-KIERZENKOWSKA ; Karolina SZEWCZYK-GOLEC
The Korean Journal of Parasitology 2015;53(5):575-581
Malaria is a tropical disease caused by protozoans of the Plasmodium genus. Delayed diagnosis and misdiagnosis are strongly associated with higher mortality. In recent years, a greater importance is attributed to Plasmodium knowlesi, a species found mainly in Southeast Asia. Routine parasitological diagnostics are associated with certain limitations and difficulties in unambiguous determination of the parasite species based only on microscopic image. Recently, molecular techniques have been increasingly used for predictive diagnosis. The aim of the study is to draw attention to the risk of travelling to knowlesi malaria endemic areas and to raise awareness among personnel involved in the therapeutic process.
Asia, Southeastern
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Global Health
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Humans
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Malaria/diagnosis/*epidemiology/*parasitology
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Microscopy/methods
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Molecular Diagnostic Techniques/methods
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Plasmodium knowlesi/*isolation & purification
;
Public Health