Displaying publications 381 - 400 of 2413 in total

Abstract:
Sort:
  1. Ab Razak R
    Malays J Reprod Health, 1985;3(1 Supplement):S64-81.
    PMID: 12320798
    Matched MeSH terms: Asia; Asia, Southeastern
  2. Ismail MT, Halim AJ, Arshat H
    Malays J Reprod Health, 1987 Jun;5(1):17-21.
    PMID: 12269177
    Matched MeSH terms: Asia; Asia, Southeastern
  3. Abad-Casintahan F, Chow SK, Goh CL, Kubba R, Hayashi N, Noppakun N, et al.
    J Dermatol, 2016 Jul;43(7):826-8.
    PMID: 26813513 DOI: 10.1111/1346-8138.13263
    In patients with darker skin types (Fitzpatrick phototypes III-VI), acne is often accompanied by post-inflammatory hyperpigmentation (PIH). Further, acne-related pigmentation can pose a greater concern for the patient than the acne lesions. There has been little formal study of this acne-related PIH. Recently, the Asian Acne Board - an international group of dermatologists with interest in acne research - made a preliminary evaluation of the frequency and characteristics of PIH in seven Asian countries. A total of 324 sequential acne subjects were evaluated for the presence of PIH. The majority (80.2%) of subjects had mild to moderate acne and there were more females than males (63.0% vs 37.0%). In this population of patients consulting a dermatologist for acne, 58.2% (188/324) had PIH. The results also showed that pigmentation problems are often long lasting: at least 1 year for more than half of subjects and 5 years or longer in 22.3%. In accordance with our clinical experience, patients reported that PIH is quite bothersome, often as bothersome or more so than the acne itself and sometimes more problematic. Excoriation was commonly reported by patients, and may represent a modifiable risk factor that could potentially be improved by patient education.
    Matched MeSH terms: Asia/epidemiology
  4. Lee MC, Tseng WC, Hsu LM, Shin SD, Jamaluddin SF, Tanaka H, et al.
    Prehosp Emerg Care, 2023;27(2):227-237.
    PMID: 35380921 DOI: 10.1080/10903127.2022.2062804
    OBJECTIVE: Injury is a major cause of morbidity and mortality in children. However, the epidemiology and prehospital care for pediatric unintentional injuries in Asia are still unclear.

    METHODS: A total of 9,737 pediatric patients aged <18 years with unintentional injuries cared for at participating centers of the Pan-Asian Trauma Outcome Study (PATOS) from October 2015 to December 2020 were reviewed retrospectively. Patients were divided into two groups: those <8 and those ≥8 years of age. Variables such as patient demographics, injury epidemiology, Injury Severity Score (ISS), and prehospital care were collected. Injury severity and administered prehospital care stratified by gross national income were also analyzed.

    RESULTS: Pediatric unintentional injuries accounted for 9.4% of EMS-transported trauma cases in the participating Asian centers, and the mortality rate was 0.88%. The leading cause of injury was traffic injuries in older children aged ≥8 years (56.5%), while falls at home were common among young children aged <8 years (43.9%). Compared with younger children, older children with similar ISS tended to receive more prehospital interventions. Uneven disease severity was found in that older children in lower-middle and upper-middle-income countries had higher ISS compared with those in high-income countries. The performance of prehospital interventions also differed among countries with different gross national incomes. Immobilizations were the most performed prehospital intervention followed by oxygen administration, airway management, and pain control; only one patient received prehospital thoracentesis. Procedures were performed more frequently in high-income countries than in upper-middle-income and lower-middle-income countries.

    CONCLUSIONS: The major cause of injury was road traffic injuries in older children, while falls at home were common among young children. Prehospital care in pediatric unintentional injuries in Asian countries was not standardized and might be insufficient, and the economic status of countries may affect the implementation of prehospital care.

    Matched MeSH terms: Asia/epidemiology
  5. Lin OA, Chuang PJ, Tseng YJ
    Regul Toxicol Pharmacol, 2023 Feb;138:105338.
    PMID: 36642324 DOI: 10.1016/j.yrtph.2023.105338
    New psychoactive substances (NPS) are substances of abuse that easily evade existing controlled drug regulations. This study conducted a systematic review on controlled drug regulations and analyzed the numbers of new psychoactive substances (NPS) reported in six East and Southeast Asian countries in comparison to US and UK from 2009 to 2020. Generally, more NPS were reported in the US (551) and UK (400), compared to Japan (379), China (221), Singapore (142), South Korea (99), Malaysia (41), and Taiwan (35). Legislative mechanisms including the specific listing of individual substances, generic control of a family of substances, analogue control of similar substances, temporary bans of new substances were evaluated. In this review, countries that have adopted a combination of legislative mechanisms were able to identify higher numbers of NPS for regulatory control, such as the US, UK, Japan, Singapore, and South Korea. These findings can provide references to countries like Malaysia and Taiwan, to strengthen NPS-related regulations nationally. Countries in the East and Southeast Asian region should be encouraged to collaborate more closely and to implement additional legislative approaches most relevant to the regional NPS trends to bridge the regulatory gap and to prevent the spread of emerging NPS.
    Matched MeSH terms: Asia, Southeastern/epidemiology
  6. Mohan K, Kumar M, Omar BJ
    Curr Pediatr Rev, 2023;19(3):242-252.
    PMID: 35366778 DOI: 10.2174/1573396318666220401110835
    The fifth malaria parasite causing malaria- Plasmodium knowlesi (Pk), is not a novel emergent species but was an undiagnosed species before the availability of molecular methods as a tool from diagnostics and sometimes confused with morphologically similar human malaria parasite P. malariae or P. falciparum. Now it is well-distributed species in Southeast Asia, especially in Malaysia. Since 2004, cases of Pk malaria are continuously being reported in adults. Though adult age, forest-related activities and a recent visit to forested areas are well-known factors, childhood did not remain untouched by this disease. Few pieces of research and reports in the literature indicate that Infection in children is uncomplicated, but this may be attributed to the scarcity of data and research in this field. Pk malaria in pregnant females and infants are being well reported, so this indicates that the problem is not only restricted to known factors related to the disease, but we should think out of the box and take action before the disease takes the form of significant health burden on the human population as P. vivax and P. falciparum species did in the past. With the reports in literature of Pk malaria in pregnancy and early infancy, the possibility of congenital and neonatal malaria also cannot be denied. So more and more research is needed to understand Pk malaria in the pediatric population clearly. So this running review covers the problem status, demographic profile, clinical and haematological features, diagnosis, management and outcome of Pk malaria in paediatric group worldwide. This review also discusses the gaps in our present knowledge of the real problem status, prevention, control, diagnosis and management of Pk malaria, particularly in this age group.
    Matched MeSH terms: Asia, Southeastern/epidemiology
  7. Shah IH
    Environ Sci Pollut Res Int, 2021 Jan;28(3):2707-2718.
    PMID: 32892281 DOI: 10.1007/s11356-020-10662-x
    The efficient consumption of material and energy resources, with minimal carbon emissions and maximum economic output, is globally significant. This study examines the metabolic transition of resource use and CO2 emissions in nine of the largest economies of East, South, and Southeast Asia. A data envelopment model has been developed to assess the efficiency of domestic material consumption and CO2 emissions during 1971-2016 at three levels of analysis. The single-country analysis results reveal that China has made the most rapid efficiency transformation during 1971-2016 followed by Japan and South Korea, while the rest of the countries in South and Southeast Asia have not illustrated significant improvements. Results from the analysis of socio-economically grouped countries show that Japan and Bangladesh are the relatively efficient economies in East and South Asia, respectively. Among Southeast Asian countries, both Indonesia and Malaysia were found to be efficient. Based on the regional analysis comparing all nine countries, Japan has consistently remained a relatively efficient economy while China-despite rapid improvements-remains a relatively inefficient economy. To this end, Japan had the lowest material and CO2 intensities compared to all other countries. Based on our results, technological advancement, industry structure, and scale of traded goods and services were found to have a significant impact (the impact of per capita income was less pronounced) on a country's effective resource utilization and carbon mitigation.
    Matched MeSH terms: Asia; Asia, Southeastern
  8. Oncology Committee, Asia and Oceania Federation of Obstetrics and Gynecology, Tse KY, Ushijima K, Tan AL, Intasorn P, Pariyar J, et al.
    J Obstet Gynaecol Res, 2023 Apr;49(4):1230-1243.
    PMID: 36726190 DOI: 10.1111/jog.15566
    BACKGROUND: Despite the introduction of cervical cancer screening and human papillomavirus (HPV) vaccines, the utilization pattern was not standardized. The aim of this study was to elicit the current prevention care in Asia-Oceania.

    METHODS: An online questionnaire was circulated to different countries/cities in Asia-Oceania. The primary objective was to evaluate the coverage of HPV vaccination and cervical screening programs. The secondary objectives were to study the structures of these programs. Five case scenarios were set to understand how the respondents manage the abnormal screening results.

    RESULTS: Fourteen respondents from 10 countries/cities had participated. Cervical cancer ranked the first in Myanmar and Nepal. About 10%-15% did not have national vaccination or screening program. The estimated coverage rate for vaccination and screening varied from less than 1% to 70%, which the coverage ran in parallel with the incidence and mortality rates of cervical cancer. All regions approved HPV vaccines, although only four provided free or subsidized programs for nonavalent vaccine. Cervical cytology remained the most common screening tool, and 20%-30% relied heavily on visual inspection using acetic acid. The screening age groups varied in different regions. From the case scenarios, it was noted that some respondents tended to offer more frequent screening tests or colposcopy than recommended by international guidelines.

    CONCLUSION: This study revealed discrepancy in the practice of cervical cancer prevention in Asia-Oceania especially access to HPV vaccines. There is an urgent need for a global collaboration to eliminate cervical cancer by public education, reforming services, and medical training.

    Matched MeSH terms: Asia/epidemiology
  9. Tham KW, Abdul Ghani R, Cua SC, Deerochanawong C, Fojas M, Hocking S, et al.
    Obes Rev, 2023 Feb;24(2):e13520.
    PMID: 36453081 DOI: 10.1111/obr.13520
    Obesity is a chronic disease in which the abnormal or excessive accumulation of body fat leads to impaired health and increased risk of mortality and chronic health complications. Prevalence of obesity is rising rapidly in South and Southeast Asia, with potentially serious consequences for local economies, healthcare systems, and quality of life. Our group of obesity specialists from Bangladesh, Brunei Darussalam, India, Indonesia, Malaysia, Philippines, Singapore, Sri Lanka, Thailand, and Viet Nam undertook to develop consensus recommendations for management and care of adults and children with obesity in South and Southeast Asia. To this end, we identified and researched 12 clinical questions related to obesity. These questions address the optimal approaches for identifying and staging obesity, treatment (lifestyle, behavioral, pharmacologic, and surgical options) and maintenance of reduced weight, as well as issues related to weight stigma and patient engagement in the clinical setting. We achieved consensus on 42 clinical recommendations that address these questions. An algorithm describing obesity care is presented, keyed to the various consensus recommendations.
    Matched MeSH terms: Asia, Southeastern/epidemiology
  10. Ng SM, Malene IV, Nilar M, Rassavong K, Dung Vu C, Hui Sieng Tan F, et al.
    Diabetes Res Clin Pract, 2022 May;187:109868.
    PMID: 35395247 DOI: 10.1016/j.diabres.2022.109868
    This will be the first publication of Type 1 diabetes(T1D) outcomes in five low-middle-income countries (LMICs)-Laos, Malaysia, Vietnam, Cambodia and Myanmar in the Southeast Asia (SEA) region. The information obtained has been possible due to partnership programmes of non-government organisationAction4Diabetes (A4D) with defined local hospitalsthrough a Memorandum of Understandingsigned with the governments in SEAthat guarantees ongoing supplies of free insulin, blood glucose meter supplies, HbA1c tests and hospital emergency funds.

    PARTICIPANTS: Between 2020 and 2021, 383 children and young people with T1D who were active in the A4D supported programmes were reviewed including information on health coverage, multidisciplinary team management, diabetic ketoacidosis (DKA) on admission and insulin regimen.

    RESULTS: Mean HbA1c between 2020 and 2021 for patients in these LMICs arereported for the first time. The average glycaemic index in the five SEAcountries reviewed between 2020 and 2021 were high at 83 mmol/mol (9.7%).

    CONCLUSIONS: Government partnership working with non-government organisationsto support T1D from diagnosis to adulthood are the first steps to closing thegaps in many LMICs. Further epidemiological studies are needed to identify the glycaemic outcomes and DKA rates on admission for many of these countries.

    Matched MeSH terms: Asia, Southeastern/epidemiology
  11. Lam DC, Liam CK, Andarini S, Park S, Tan DSW, Singh N, et al.
    J Thorac Oncol, 2023 Oct;18(10):1303-1322.
    PMID: 37390982 DOI: 10.1016/j.jtho.2023.06.014
    INTRODUCTION: The incidence and mortality of lung cancer are highest in Asia compared with Europe and USA, with the incidence and mortality rates being 34.4 and 28.1 per 100,000 respectively in East Asia. Diagnosing lung cancer at early stages makes the disease amenable to curative treatment and reduces mortality. In some areas in Asia, limited availability of robust diagnostic tools and treatment modalities, along with variations in specific health care investment and policies, make it necessary to have a more specific approach for screening, early detection, diagnosis, and treatment of patients with lung cancer in Asia compared with the West.

    METHOD: A group of 19 advisors across different specialties from 11 Asian countries, met on a virtual Steering Committee meeting, to discuss and recommend the most affordable and accessible lung cancer screening modalities and their implementation, for the Asian population.

    RESULTS: Significant risk factors identified for lung cancer in smokers in Asia include age 50 to 75 years and smoking history of more than or equal to 20 pack-years. Family history is the most common risk factor for nonsmokers. Low-dose computed tomography screening is recommended once a year for patients with screening-detected abnormality and persistent exposure to risk factors. However, for high-risk heavy smokers and nonsmokers with risk factors, reassessment scans are recommended at an initial interval of 6 to 12 months with subsequent lengthening of reassessment intervals, and it should be stopped in patients more than 80 years of age or are unable or unwilling to undergo curative treatment.

    CONCLUSIONS: Asian countries face several challenges in implementing low-dose computed tomography screening, such as economic limitations, lack of efforts for early detection, and lack of specific government programs. Various strategies are suggested to overcome these challenges in Asia.

    Matched MeSH terms: Asia/epidemiology
  12. Ahmad Ainuddin H, Romli MH, Hamid TA, Salim MSF, Mackenzie L
    Front Public Health, 2021;9:611793.
    PMID: 33748063 DOI: 10.3389/fpubh.2021.611793
    Background: Research on rehabilitation for falls after stroke is warranted. However, published evidence on fall interventions with stroke survivors is limited and these are mainly international studies that may be less relevant for Southeast Asia. Objective: This review aims to systematically identify literature related to stroke rehabilitation for falls and risk of falls in Southeast Asia. Methods: A scoping review with stakeholders' consultation was implemented. An electronic search was conducted up to December 2020 on 4 databases (Medline, CINAHL, Scopus, ASEAN Citation Index). Only original studies conducted in Southeast Asia were selected. Results: The initial search yielded 3,112 articles, however, only 26 were selected in the final analysis. Most of the articles focused on physical rehabilitation and implemented conventional therapies. While the literature may reflect practice in Southeast Asia, stakeholders perceived that the literature was inadequate to show true practice, was not informative and missed several aspects such as functional, cognitive, and psychological interventions in managing falls. Individual-centric interventions dominated the review while community-based and environmental-focused studies were limited. Majority of the articles were written by physiotherapists while others were from physicians, occupational therapists, and an engineer but few from other healthcare practitioners (i.e., speech therapists, psychologists) or disciplines interested in falls. Conclusions: Falls prevention among stroke survivors has received a lack of attention and is perceived as an indirect goal in stroke rehabilitation in Southeast Asia. More innovative research adopted from falls research with older people is needed to advance falls prevention and intervention practice with stroke survivors.
    Matched MeSH terms: Asia, Southeastern/epidemiology
  13. Youn YA, Kim SY, Cho SJ, Chang YS, Miyake F, Kusuda S, et al.
    Sci Rep, 2023 Sep 20;13(1):15602.
    PMID: 37730731 DOI: 10.1038/s41598-023-42432-3
    Advances in perinatal care have led to the increased survival of preterm infants with subsequent neonatal morbidities, such as retinopathy of prematurity (ROP). This study aims to compare the differences of neonatal healthcare systems, resources, and clinical practice concerning ROP in Asia with review of current literature. An on-line survey at the institutional level was sent to the directors of 336 neonatal intensive care units (NICU) in 8 collaborating national neonatal networks through the Asian Neonatal Network Collaboration (AsianNeo). ROP screening was performed in infants born at
    Matched MeSH terms: Asia/epidemiology
  14. Wong CHM, Xu N, Lim J, Feng KK, Chan WKW, Chan MTY, et al.
    Prostate, 2023 Jun;83(8):801-808.
    PMID: 36938957 DOI: 10.1002/pros.24519
    BACKGROUND: Androgen deprivation therapy (ADT) use in prostate cancer (PCa) has seen a rising trend. We investigated the relationship between ADT and adverse changes in metabolic parameters in an Asian population.

    METHODS: This is an international prospective multicenter single-arm cohort yielded from the real-life experience of ADT in Asia (READT) registry. Consecutive ADT-naïve patients diagnosed of PCa and started on ADT were prospectively recruited from 2016 and analyzed. Baseline patient characteristics, PCa disease status, and metabolic parameters were documented. Patients were followed up at 6-month interval for up to 5 years. Metabolic parameters including body weight, lipid profiles, and glycemic profiles were recorded and analyzed.

    RESULTS: 589 patients were eligible for analysis. ADT was associated with adverse glycemic profiles, being notable at 6 months upon ADT initiation and persisted beyond 1 year. Comparing to baseline, fasting glucose level and hemoglobin A1c level increased by 4.8% (p 

    Matched MeSH terms: Asia/epidemiology
  15. Sun CZ, Sim SSKP, Vyas CH, Lott PW, Gunatheesan R, Teo KYC, et al.
    Eye (Lond), 2022 Jun;36(6):1143.
    PMID: 35046551 DOI: 10.1038/s41433-021-01859-6
    Matched MeSH terms: Asia/epidemiology
  16. Okuma HS, Yoshida H, Kobayashi Y, Arakaki M, Mizoguchi C, Inagaki L, et al.
    Cancer Sci, 2023 Jun;114(6):2664-2673.
    PMID: 36919757 DOI: 10.1111/cas.15790
    Tissue specimen quality assurance is a major issue of precision medicine for rare cancers. However, the laboratory standards and quality of pathological specimens prepared in Asian hospitals remain unknown. To understand the methods in Southeast Asian oncology hospitals and to clarify how pre-analytics affect the quality of formalin-fixed paraffin-embedded (FFPE) specimens, a questionnaire surveying pre-analytical procedures (Part I) was administered, quality assessment of immunohistochemistry (IHC) staining and DNA/RNA extracted from the representative FFPE specimens from each hospital (Part II) was conducted, and the quality of DNA/RNA extracted from FFPE of rare-cancer patients for genomic sequencing (Part III) was examined. Quality measurements for DNA/RNA included ΔΔCt, DV200, and cDNA yield. Six major cancer hospitals from Malaysia, Philippines, and Vietnam participated. One hospital showed unacceptable quality for the DNA/RNA assessment, but improved by revising laboratory procedures. Only 57% (n = 73) of the 128 rare-cancer patients' specimens met both DNA and RNA quality criteria for next-generation sequencing. Median DV200 was 80.7% and 64.3% for qualified and failed RNA, respectively. Median ΔΔCt was 1.25 for qualified and 4.89 for failed DNA. Longer storage period was significantly associated with poor DNA (fail to qualify ratio = 1579:321 days, p 
    Matched MeSH terms: Asia; Asia, Southeastern
  17. Wu PY, Fung AT, Dave VP, Iu LPL, Sjahreza E, Chaikitmongkol V, et al.
    Clin Exp Ophthalmol, 2023 Aug;51(6):585-597.
    PMID: 37170410 DOI: 10.1111/ceo.14236
    BACKGROUND: To assess rhegmatogenous retinal detachment (RRD) surgery trends and training among young ophthalmologists (YOs, vitreoretinal fellows or attendings/consultants with ≤10 years of independent practice) and the impact of the COVID-19 pandemic.

    METHODS: An anonymous online survey was completed by 117 YOs in the Asia-Pacific regarding their RRD surgery experiences in 2021-2022.

    RESULTS: To achieve a 90% probability of surgical competency, 91 vitrectomy and 34 scleral buckling (SB) completions during fellowship were needed. In total, 49 (41.9%) YOs had fellowship affected by COVID-19. In the COVID versus pre-COVID era, however, the volume of SB completions per fellowship year decreased significantly (median [IQR] 3.3 [1.5, 9] vs. 13 [6.5, 23]; p Asia-Pacific countries/regions we surveyed and further declined during the COVID-19 pandemic. YOs are less confident in performing SB, leading to a trend toward primary vitrectomy since the COVID-19 outbreak.

    Matched MeSH terms: Asia/epidemiology
  18. Shepard DS, Undurraga EA, Halasa YA
    PLoS Negl Trop Dis, 2013;7(2):e2055.
    PMID: 23437406 DOI: 10.1371/journal.pntd.0002055
    BACKGROUND: Dengue poses a substantial economic and disease burden in Southeast Asia (SEA). Quantifying this burden is critical to set policy priorities and disease-control strategies.

    METHODS AND FINDINGS: We estimated the economic and disease burden of dengue in 12 countries in SEA: Bhutan, Brunei, Cambodia, East-Timor, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Viet Nam. We obtained reported cases from multiple sources--surveillance data, World Health Organization (WHO), and published studies--and adjusted for underreporting using expansion factors from previous literature. We obtained unit costs per episode through a systematic literature review, and completed missing data using linear regressions. We excluded costs such as prevention and vector control, and long-term sequelae of dengue. Over the decade of 2001-2010, we obtained an annual average of 2.9 million (m) dengue episodes and 5,906 deaths. The annual economic burden (with 95% certainty levels) was US$950m (US$610m-US$1,384m) or about US$1.65 (US$1.06-US$2.41) per capita. The annual number of disability-adjusted life years (DALYs), based on the original 1994 definition, was 214,000 (120,000-299,000), which is equivalent to 372 (210-520) DALYs per million inhabitants.

    CONCLUSION: Dengue poses a substantial economic and disease burden in SEA with a DALY burden per million inhabitants in the region. This burden is higher than that of 17 other conditions, including Japanese encephalitis, upper respiratory infections, and hepatitis B.

    Matched MeSH terms: Asia, Southeastern/epidemiology
  19. Ng SM, Malene IV, Nguyen TK, Le K, Lim YXL, Lek N, et al.
    BMC Endocr Disord, 2023 Nov 16;23(1):249.
    PMID: 37974071 DOI: 10.1186/s12902-023-01501-4
    BACKGROUND: There is minimal data of health outcomes for Type 1 Diabetes (T1D) in Southeast Asia (SEA) where government funding of insulin and blood glucose monitoring either do not exist or is limited. The full impact of Covid-19 pandemic on the national economies of SEA remain unknown. In the midst of the pandemic, in 2021, HelloType1 was developed by Action4Diabetes (A4D), a non-government organisation charity in collaboration with Southeast Asia local healthcare professionals as an innovative digital educational resource platform of T1D in local languages. HelloType1 was launched in Cambodia, Vietnam, Thailand and Malaysia in 2021 to 2022 with Memorandums of Understandings (MOUs) signed between A4D and each country. Internet data analytics were undertaken between the 1st of January 2022 to 31st of December 2022.

    AIMS: The aims of this study were to explore the usability and internet data analytics of the HelloType1 online educational platform within each country.

    METHODS: The data analytics were extracted Google analytics that tracks data from the website hellotype1.com and Facebook analytics associated with the website.

    RESULTS: There was a 147% increase in the number of HelloType1 users between the first 6 months versus the latter 6 months in 2022 and a 15% increase in the number of pages visited were noted. The majority of traffic source were coming from organic searches with a significant increase of 80% growth in 2022.

    CONCLUSIONS: The results of the analytics provide important insights on how an innovative diabetes digital educational resource in local languages may be optimally delivered in low-middle income countries with limited resources.

    Matched MeSH terms: Asia, Southeastern/epidemiology
  20. Tobin RJ, Harrison LE, Tully MK, Lubis IND, Noviyanti R, Anstey NM, et al.
    PLoS Negl Trop Dis, 2024 Jan;18(1):e0011570.
    PMID: 38252650 DOI: 10.1371/journal.pntd.0011570
    BACKGROUND: Plasmodium knowlesi is a zoonotic parasite that causes malaria in humans. The pathogen has a natural host reservoir in certain macaque species and is transmitted to humans via mosquitoes of the Anopheles Leucosphyrus Group. The risk of human P. knowlesi infection varies across Southeast Asia and is dependent upon environmental factors. Understanding this geographic variation in risk is important both for enabling appropriate diagnosis and treatment of the disease and for improving the planning and evaluation of malaria elimination. However, the data available on P. knowlesi occurrence are biased towards regions with greater surveillance and sampling effort. Predicting the spatial variation in risk of P. knowlesi malaria requires methods that can both incorporate environmental risk factors and account for spatial bias in detection.

    METHODS & RESULTS: We extend and apply an environmental niche modelling framework as implemented by a previous mapping study of P. knowlesi transmission risk which included data up to 2015. We reviewed the literature from October 2015 through to March 2020 and identified 264 new records of P. knowlesi, with a total of 524 occurrences included in the current study following consolidation with the 2015 study. The modelling framework used in the 2015 study was extended, with changes including the addition of new covariates to capture the effect of deforestation and urbanisation on P. knowlesi transmission.

    DISCUSSION: Our map of P. knowlesi relative transmission suitability estimates that the risk posed by the pathogen is highest in Malaysia and Indonesia, with localised areas of high risk also predicted in the Greater Mekong Subregion, The Philippines and Northeast India. These results highlight areas of priority for P. knowlesi surveillance and prospective sampling to address the challenge the disease poses to malaria elimination planning.

    Matched MeSH terms: Asia, Southeastern/epidemiology
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links