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Wasitthankasem R, Wanlapakorn N, Pimsing N, Posuwan N, Poovorawan Y. Simplified Test-to-Treat Strategy for Hepatitis C in Thailand: The Phetchabun Model. J Infect Dis 2023; 228:S198-S203. [PMID: 37703343 DOI: 10.1093/infdis/jiac490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
The complexity of the hepatitis C virus (HCV) diagnostic workflow and stringent criteria for universal health coverage are significant barriers to achieving HCV elimination in Thailand. A test-to-treat strategy using a rapid diagnostic test (RDT) for screening at point of care, followed by a qualitative nucleic acid testing, is a promising strategy to facilitate population-wide screening for HCV infection and expedite time to treatment. This strategy was evaluated in Phetchabun province, Thailand, where the HCV burden is relatively high. This simplified HCV test-to-treat strategy showed strong potential to be implemented at a national level. Several obstacles to implementation included the stringent criteria for universal health coverage, which prioritizes patients with advanced disease, the continuous policy revision for HCV treatment and care, the relatively low public awareness of HCV infection, and the lagging of government policy prioritization. All of these contribute to the delayed progress in hepatitis elimination.
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Affiliation(s)
- Rujipat Wasitthankasem
- National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Nasamon Wanlapakorn
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Patum Thani, Thailand
| | - Napaporn Pimsing
- Phetchabun Provincial Public Health Office, Phetchabun, Thailand
| | - Nawarat Posuwan
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Patum Thani, Thailand
| | - Yong Poovorawan
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Patum Thani, Thailand
- Fellow of Royal Society of Thailand (FRS[T]), The Royal Society of Thailand, Sanam Sueapa, Dusit, Bangkok, Thailand
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Pratedrat P, Nilyanimit P, Wasitthankasem R, Posuwan N, Auphimai C, Hansoongnern P, Pimsing N, Ngamnimit S, Thongmai C, Phaengkha W, Wanlapakorn N, Vongpunsawad S, Poovorawan Y. Qualitative hepatitis C virus RNA assay identifies active infection with sufficient viral load for treatment among Phetchabun residents in Thailand. PLoS One 2023; 18:e0268728. [PMID: 36656832 PMCID: PMC9851543 DOI: 10.1371/journal.pone.0268728] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 10/20/2022] [Indexed: 01/20/2023] Open
Abstract
The World Health Organization envisions the elimination of viral hepatitis by 2030 through reducing prevalence and transmission, increasing diagnostic screening, and expanding treatment coverage. Efforts to micro-eliminate hepatitis in Phetchabun province in Thailand, a region where the prevalence of hepatitis C virus (HCV) infection and liver cancer is higher than elsewhere in the country, began with evaluating the province-wide burden of HCV. Here, we describe a feasibility study to assess active HCV infection by screening Phetchabun residents ages 35 to 69 years for anti-HCV antibodies by using a rapid diagnostic test (RDT) at the point of care. Positive anti-HCV results were further evaluated for active infection using qualitative HCV RNA assay, followed by quantitative HCV viral load determination in a subset of samples. Currently, we have identified 6.2% (10,621/170,163) anti-HCV positive individuals, of whom 74.9% (3,930/5,246) demonstrated detectable viral RNA. Quantitative test found that 97.5% (1,001/1,027) had HCV viral load ≥5,000 IU/mL. Thus, primary screening with anti-HCV RDT followed by qualitative HCV RNA evaluation could identify active and chronic HCV infection in almost all individuals with a viral load ≥5,000 IU/mL, which is the current threshold for treatment dictated by Thailand's National Health Security Office. Our data suggest that qualitative HCV RNA evaluation may obviate the need for the more expensive quantitative HCV viral load test and reduce a significant barrier toward HCV elimination in a middle-income country.
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Affiliation(s)
- Pornpitra Pratedrat
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Pornjarim Nilyanimit
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Rujipat Wasitthankasem
- National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Nawarat Posuwan
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Pathum Thani, Thailand
| | - Chompoonut Auphimai
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Payuda Hansoongnern
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Napaporn Pimsing
- Non-Communicable Disease Control Group, Phetchabun Provincial Health Office, Phetchabun, Thailand
| | - Saranya Ngamnimit
- Non-Communicable Disease Control Group, Phetchabun Provincial Health Office, Phetchabun, Thailand
| | - Chaiwat Thongmai
- Phetchabun Provincial Public Health Office, Phetchabun, Thailand
| | | | - Nasamon Wanlapakorn
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sompong Vongpunsawad
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- FRS(T), The Royal Society of Thailand, Bangkok, Thailand
- * E-mail:
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Mbaga DS, Bikoï JN, Okobalemba EA, Essindi JO, Mikangue CAM, Membangbi AE, Ngoutane A, Elang AF, Touangnou-Chamda SA, Sake CS, Mondinde GI, Kenmoe S, Essama SHR. Seroprevalence of hepatitis C virus antigen in patients with chronic liver disease and hepatocellular carcinoma at 12 th week of treatment: a cross-sectional study. Pan Afr Med J 2022; 43:72. [PMID: 36590993 PMCID: PMC9789782 DOI: 10.11604/pamj.2022.43.72.35450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/24/2022] [Indexed: 11/07/2022] Open
Abstract
Introduction epidemiological data suggests that more than 50% of hepatitis C virus (HCV) patients fail treatment. The objective of the study was to highlight the seroprevalence of hepatitis C virus antigen (HCV Ag) at the 12th week of treatment. Methods during a cross-sectional study, participants with chronic liver disease and hepatocellular carcinoma (HCC) were recruited between December 2020 and March 2022 at the Yaoundé General Hospital (HGY) and the University Teaching Hospital of Yaounde (UTHY). Five millilitres of blood samples were taken from each consenting participant and then a qualitative search for HCV Ag by Enzyme-Linked Immuno Assay (ELISA) was performed. Analysis of the results was performed using SPSS Version 25.0 software. Results out of the 192 participants selected for the study, only 92 (47,9%) participants were at 12 weeks of treatment, including 69 (75%) participants positive for the hepatitis C virus antibody (HCV Ab) by RDT. Of these participants, 44 (47.8%) participants were positive for HCV Ag by ELISA, respectively 19/37 (51.3%), 14/19 (73.6%), 11/13 (84.6%) with chronic hepatitis (HC), Cirrhosis, and HCC (P<0.0001). Conclusion our results showed a high prevalence of HCV Ag in patients at their 12th week of treatment which predicts treatment failure and calls for public policy to develop new management strategies to prevent HCV treatment failure in our context.
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Affiliation(s)
| | - Jacky Njiki Bikoï
- Department of Microbiology, The University of Yaoundé I, Yaoundé, Cameroon
| | | | | | | | | | - Aïcha Ngoutane
- Department of Microbiology, The University of Yaoundé I, Yaoundé, Cameroon,,Institute of Medical Research and Medicinal Plant Study, Yaoundé, Cameroon
| | | | | | | | - George Ikomey Mondinde
- Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I (Center for the Study and Control of Communicable Diseases (CSCCD), Yaoundé, Cameroon
| | - Sebastien Kenmoe
- Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon
| | - Sara Honorine Riwom Essama
- Department of Microbiology, The University of Yaoundé I, Yaoundé, Cameroon,,Corresponding author: Sara Honorine Riwom Essama, Department of Microbiology, The University of Yaoundé I, Yaoundé, Cameroon.
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Application of Mac-2 binding protein glycosylation isomer as a non-invasive biomarker for probing liver disease. Sci Rep 2022; 12:6757. [PMID: 35474106 PMCID: PMC9043201 DOI: 10.1038/s41598-022-10744-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 04/08/2022] [Indexed: 12/24/2022] Open
Abstract
Liver disease remains a major critical challenge in Thailand due to viral hepatitis. Clinical management requires close monitoring of liver fibrosis severity. Non-invasive testing is an attractive method for probing of disease progression. Mac-2 binding protein glycosylation isomer (M2BPGi) is a novel serum marker for fibrosis staging. The current study evaluates the marker among healthy donors and hepatitis C (HCV) patients. 100 HCV subjects were evaluated by liver biopsy. These patients had varying fibrosis severity based on METAVIR scores. Healthy donors were confirmed based on normal liver functions tests. Comparisons of M2BPGi levels among different study groups were performed and the effectiveness was evaluated using receiver operating characteristics (ROC) curves. Using liver biopsy as the reference standard, median M2BPGi levels in HCV cases were 0.74, 1.38 and 2.88 COI for F0-1, F2 and > F3 cases respectively. In healthy donors, the baseline values ranged 0.1–0.24 COI and statistically lower than liver disease cases profiled using M2BPGi. ROC analysis demonstrated superior results for M2BPGi levels among diseased populations and healthy controls. AUROC was determined at 0.983. Comparing with other non-invasive tests, M2BPGi showed a positive linear trend that indicated a strong match to existing methodologies. M2BPGi addresses a critical need in the management of liver disease by providing straightforward means to probe fibrosis severity. In this study, we found significant differences between hepatitis C and healthy subjects and established the background level in healthy donors.
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Wasitthankasem R, Posuwan N, Pimsing N, Phaengkha W, Ngamnimit S, Vichaiwattana P, Thongpan I, Tongsima S, Vongpunsawad S, Poovorawan Y. Prescreening with a Rapid Diagnostic Test Followed by a Confirmatory Qualitative Nucleic Acid Test Can Simplify Hepatitis C Diagnosis. Am J Trop Med Hyg 2022; 106:tpmd211016. [PMID: 35226876 PMCID: PMC9128707 DOI: 10.4269/ajtmh.21-1016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/06/2022] [Indexed: 11/07/2022] Open
Abstract
Asymptomatic hepatitis C virus (HCV) infection without treatment is associated with chronic liver diseases including hepatocellular carcinoma. A major obstacle to hepatitis C diagnosis leading to antiviral treatment in some developing countries is the complicated HCV testing required before treatment. To simplify an HCV test-to-treat strategy, which could lead to timely diagnosis and treatment at the point-of-care, we evaluated the performance of four anti-HCV rapid diagnostic tests (RDTs) (Abon, Blue Cross, Healgen, and SD Bioline). They yielded comparable sensitivity (80-83%), specificity (99-100%), and accuracy (90-91.5%). When we field-tested Abon in 4,769 residents of an HCV-endemic province in Thailand, 306 seropositive individuals (6.4%) were identified. In comparison, laboratory test using an automated commercial chemiluminescent microparticle immunoassay (Abbott ARCHITECT) identified slightly more seropositives (327% or 6.9%). Field implementation suggests that Abon was sensitive (88.7%), specific (99.6%), and accurate (98.9%). Furthermore, 82% (250/306) of Abon-positive samples had detectable HCV RNA as determined by nucleic acid test (Roche cobas). The same 250 samples out of 327 reactive in Abbott immunoassay also had detectable HCV RNA (mean RNA level: log 6.28 IU/mL, range: log 3.06- 7.78 IU/mL). The use of RDT followed by qualitative nucleic acid test can cost-effectively identify the majority of HCV seropositive individuals with active infection, which will obviate the need for expensive viral load quantification tests when simplifying HCV diagnosis for the test-to-treat program at the point-of-care.
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Affiliation(s)
- Rujipat Wasitthankasem
- National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Nawarat Posuwan
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Patum Thani, Thailand
| | - Napaporn Pimsing
- Phetchabun Provincial Public Health Office, Phetchabun, Thailand
| | | | | | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Ilada Thongpan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sompong Vongpunsawad
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Phisalprapa P, Tanwandee T, Neo BL, Singh S. Knowledge, attitude, and behaviors toward liver health and viral hepatitis-related liver diseases in Thailand. Medicine (Baltimore) 2021; 100:e28308. [PMID: 34941122 PMCID: PMC8702093 DOI: 10.1097/md.0000000000028308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 11/26/2021] [Indexed: 01/05/2023] Open
Abstract
This study aimed to quantify and evaluate the knowledge and awareness toward liver health and diseases as well as explore the attitudes and knowledge toward screening, diagnosis, and treatment of liver disease among the Thai population.This is a cross-sectional, self-reported and web-based questionnaire study. Awareness, perceptions and attitudes toward liver-related health and diseases as well as screening, diagnosis and treatment of liver diseases were assessed among 500 Thai adults.Respondents were mostly ≥35 years (62.0%) and females (52.0%). While there was an overall awareness regarding viral hepatitis as the main etiology of liver failure/cancer, respondents expressed misperceptions that hint at social stigmatization or discrimination toward infected individuals. A significant proportion lacked knowledge of liver screening tests and relevant diagnostic tests for viral hepatitis-related liver diseases. Screening or treatment costs and perception of being healthy were among reasons for not seeking medical consultation when exposed to risk factors or diagnosed. Treatment practices of hepatitis included prescription medication (59.1%), functional foods (51.8%) and traditional treatment (28.2%). Multivariate analysis identified income, recent health screening status and being diagnosed with liver disease(s) as significant predictors of the knowledge, attitude, and behaviors of the Thai population toward liver diseases.This study highlighted a degree of misperception and lack of in-depth understanding toward hepatitis-related liver diseases including poor attitudes and knowledge toward screening, diagnosis, and treatment of liver diseases. Factors identified suggest an unmet need to encourage proactive health-seeking behaviors to reduce transmission risks of hepatitis-related liver diseases within the community.
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Affiliation(s)
- Pochamana Phisalprapa
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
| | - Tawesak Tanwandee
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
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Pomyen Y, Budhu A, Chaisaingmongkol J, Forgues M, Dang H, Ruchirawat M, Mahidol C, Wang XW. Tumor metabolism and associated serum metabolites define prognostic subtypes of Asian hepatocellular carcinoma. Sci Rep 2021; 11:12097. [PMID: 34103600 PMCID: PMC8187378 DOI: 10.1038/s41598-021-91560-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/24/2021] [Indexed: 12/20/2022] Open
Abstract
Treatment effectiveness in hepatocellular carcinoma (HCC) depends on early detection and precision-medicine-based patient stratification for targeted therapies. However, the lack of robust biomarkers, particularly a non-invasive diagnostic tool, precludes significant improvement of clinical outcomes for HCC patients. Serum metabolites are one of the best non-invasive means for determining patient prognosis, as they are stable end-products of biochemical processes in human body. In this study, we aimed to identify prognostic serum metabolites in HCC. To determine serum metabolites that were relevant and representative of the tissue status, we performed a two-step correlation analysis to first determine associations between metabolic genes and tissue metabolites, and second, between tissue metabolites and serum metabolites among 49 HCC patients, which were then validated in 408 additional Asian HCC patients with mixed etiologies. We found that certain metabolic genes, tissue metabolites and serum metabolites can independently stratify HCC patients into prognostic subgroups, which are consistent across these different data types and our previous findings. The metabolic subtypes are associated with β-oxidation process in fatty acid metabolism, where patients with worse survival outcome have dysregulated fatty acid metabolism. These serum metabolites may be used as non-invasive biomarkers to define prognostic tumor molecular subtypes for HCC.
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Affiliation(s)
- Yotsawat Pomyen
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.,Translational Research Unit, Chulabhorn Research Institute, Bangkok, 10210, Thailand
| | - Anuradha Budhu
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.,Liver Cancer Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Jittiporn Chaisaingmongkol
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.,Laboratory of Chemical Carcinogenesis, Chulabhorn Research Institute, Bangkok, 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Office of Higher Education Commission, Ministry of Higher Education, Science, Research and Innovation, Bangkok, 10400, Thailand
| | - Marshonna Forgues
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Hien Dang
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.,Division of Surgery, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Mathuros Ruchirawat
- Laboratory of Chemical Carcinogenesis, Chulabhorn Research Institute, Bangkok, 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Office of Higher Education Commission, Ministry of Higher Education, Science, Research and Innovation, Bangkok, 10400, Thailand
| | - Chulabhorn Mahidol
- Laboratory of Chemical Carcinogenesis, Chulabhorn Research Institute, Bangkok, 10210, Thailand
| | - Xin Wei Wang
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA. .,Liver Cancer Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.
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Posuwan N, Wanlapakorn N, Sintusek P, Wasitthankasem R, Poovorawan K, Vongpunsawad S, Poovorawan Y. Towards the elimination of viral hepatitis in Thailand by the year 2030. J Virus Erad 2020; 6:100003. [PMID: 33251021 PMCID: PMC7646674 DOI: 10.1016/j.jve.2020.100003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 01/12/2020] [Accepted: 06/23/2020] [Indexed: 12/19/2022] Open
Abstract
Viral hepatitis is a global problem with mortality comparable to HIV, tuberculosis and malaria. The WHO aims to eliminate hepatitis B (HBV) and hepatitis C (HCV) by 2030. Improved socioeconomic status of developing countries such as Thailand has reduced the incidence and morbidity associated with hepatitis A. Since the beginning of hepatitis B vaccination in all Thai newborns in 1992, at least 95% of one-year-olds are currently receiving 3–4 hepatitis B doses. The second vaccination of newborns of carrier mothers at 1 month of age has contributed to an effective reduction in mother-to-child transmission. Universal vaccination, blood donation screening, and decreasing needle sharing have reduced hepatitis B infection. Under the test and treat model, cost-effective screening at the point-of-care (health center or village hospital) is recommended for adults >30 years-old. Following referral to a tertiary healthcare center for a treatment plan in developing disease management plan, its implementation by trained healthcare professionals is preferably administered at the point-of-care. Hepatitis C prevalence is also decreasing as a result of blood-borne pathogen awareness. Current hepatitis C infection is highest for adults >35 years who were born prior to 1983, with screening is recommend once in their lifetime. Treatment strategy recommendation follows that of hepatitis B. The availability of direct antiviral agents with high cure rates is expected to contribute to the reduction in hepatitis C transmission and mortality as set forth by the WHO policy. Thus, ensuring the successful planning of hepatitis elimination in Thailand requires pilot regional assessment prior to national implementation.
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Affiliation(s)
- Nawarat Posuwan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand
| | - Nasamon Wanlapakorn
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand.,Division of Academic Affairs, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand
| | - Palittiya Sintusek
- STAR (Special Task Force for Activating Research), Pediatric Gastroenterology and Hepatology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand
| | - Rujipat Wasitthankasem
- National Biobank of Thailand, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani, Thailand
| | - Kittiyod Poovorawan
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Sompong Vongpunsawad
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand
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Risky injection practices and HCV awareness in Chiang Mai Province, Thailand: a respondent-driven sampling study of people who inject drugs. BMC Public Health 2020; 20:1450. [PMID: 32972359 PMCID: PMC7517806 DOI: 10.1186/s12889-020-09549-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 09/16/2020] [Indexed: 12/15/2022] Open
Abstract
Background People who inject drugs (PWID) are the most exposed to hepatitis C virus (HCV). In Thailand, drug use is highly criminalized, and harm reduction services are scarce. This study estimates risky injection practices and assesses the proportion of HCV awareness and screening in the PWID population in Northern Thailand. Methods We used respondent-driven sampling (RDS) to recruit PWID in Chiang Mai Province. Social and behavioural data were collected through face-to-face interviews at an addiction treatment facility. Weighted population estimates were calculated to limit biases related to the non-random sampling method. Univariate and multivariate analyses were performed to study factors associated with HCV awareness and screening. Results One hundred seventy-one PWID were recruited between April 2016 and January 2017. Median age was 33 (Interquartile range: 26–40) years, 12.2% were women, and 49.4% belonged to a minority ethnic group. Among participants, 76.8% injected heroin, 20.7% methadone, and 20.7% methamphetamine. We estimate that 22.1% [95% CI: 15.7–28.6] of the population had shared needles in the last 6 months and that 32.0% [95% CI: 23.6–40.4] had shared injection material. Only 26.6% [95% CI: 17.6–35.6] had heard of HCV. Factors independently associated with knowledge of HCV included belonging to a harm reduction organization (adjusted odds ratio (aOR) = 5.5 [95% CI: 2.0–15.3]) and voluntary participation in a drug rehabilitation programme (aOR = 4.3 [95% CI: 1.3–13.9]), while Lahu ethnicity was negatively associated (aOR = 0.3 [95% CI: 0.1–0.9]). We estimate that 5% of the PWID population were screened for HCV; the only factor independently associated with being screened was membership of a harm reduction organization (aOR = 5.7 [95% CI: 1.6–19.9]). Conclusion Our study reveals that the PWID population is poorly informed and rarely screened for HCV, despite widespread risky injection practices. A public health approach aimed at reducing the incidence of HCV should target the PWID population and combine harm reduction measures with information and destigmatization campaigns. Civil society organizations working with PWID are a major asset for the success of such an approach, based on their current positive interventions promoting awareness of and screening for HCV.
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Wasitthankasem R, Pimsingh N, Treesun K, Posuwan N, Vichaiwattana P, Auphimai C, Thongpan I, Tongsima S, Vongpunsawad S, Poovorawan Y. Prevalence of Hepatitis C Virus in an Endemic Area of Thailand: Burden Assessment toward HCV Elimination. Am J Trop Med Hyg 2020; 103:175-182. [PMID: 32394881 DOI: 10.4269/ajtmh.19-0817] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Chronic hepatitis C virus (HCV) infection can lead to liver cirrhosis and hepatocellular carcinoma. To eliminate HCV infection in an endemic area, an epidemiological baseline of the current HCV infection in the population is required. We therefore aimed to evaluate the HCV burden in the Thai Province of Phetchabun, which has the highest HCV infection rate in the country. Toward this, a province-wide district-based representative sampling of 4,769 individuals ages 35-64 years previously shown to represent high-risk age-groups were tested for anti-HCV antibodies using the automated chemiluminescent microparticle assays. Active HCV infection and subsequent genotyping were determined from serologically reactive samples by amplification of the HCV core gene. We found that 6.9% (327/4,769) were anti-HCV positive, of which 75.8% (248/327) had detectable HCV RNA and 5.8% (19/327) were in the presence of hepatitis B virus coinfection. Nucleotide sequencing and phylogenetic analysis revealed that HCV genotype 6 was the most prevalent (41%, 101/248), followed by genotype 3 (31%, 78/248), and genotype 1 (28%, 69/248). Socioeconomic and demographic factors including male gender, education, and agricultural work were associated with HCV seropositivity. From these results, we defined the regional HCV genotypes and estimated the HCV burden necessary toward the implementation of pan-genotypic direct-acting antivirals, which may be appropriate and effective toward the diversity of genotypes identified in this study. Micro-elimination of HCV in Phetchabun may serve as a model for a more comprehensive coverage of HCV treatment in Thailand.
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Affiliation(s)
- Rujipat Wasitthankasem
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand.,National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand.,Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Napaporn Pimsingh
- Non-Communicable Disease Control Group, Phetchabun Provincial Health Office, Phetchabun, Thailand
| | - Khuandao Treesun
- Non-Communicable Disease Control Group, Phetchabun Provincial Health Office, Phetchabun, Thailand
| | - Nawarat Posuwan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chompoonut Auphimai
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Ilada Thongpan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sissades Tongsima
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand.,National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sompong Vongpunsawad
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Xu S, Zhang W, Wang Q, Cui J, Yan W, Xie H, Ni A. Hepatitis B virus serological screen in a general hospital in Beijing from 2008 to 2018, and challenges to our vaccination policy. Vaccine X 2020; 4:100057. [PMID: 32123866 PMCID: PMC7038442 DOI: 10.1016/j.jvacx.2020.100057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/30/2020] [Accepted: 02/12/2020] [Indexed: 12/12/2022] Open
Abstract
Objective Hepatitis B virus (HBV) has a worldwide distribution and remains a leading public health problem in China. Method Automated chemiluminescence microparticle immunoassay was used to test all five markers of HBV serology in serum samples among 696,048 patients, pregnant women, and normal subjects in Beijing from 2008 to 2018. Results The overall prevalence of subjects categorized as previous/ occult HBV infection, inactive HBsAg carrier, active HBV infection, HBsAg, HBV susceptible, and immune via vaccination was 29.4%, 4.8%, 1.4%, 6.4%, 33.9% and 30.3%, respectively; men had a significantly higher prevalence of HBV infection than women. The prevalence of HBsAg was around 0.5% in subjects ≤ 10 years of age, increased dramatically to 3.7% in subjects between 11 and 20 years of age, reached the highest level of 7.9% in subjects between 41 and 50 years of age, and finally decreased to 2.8% in subjects ≥ 81 years of age. During the 10 years from 2008 to 2018, the prevalence of HBsAg was stabilized at about 6.0%, and indicators of HBV susceptibility, previous/ occult HBV infection, and immunity via vaccination were not further improved, despite the constant implementation of HBV vaccination since 1992. All four age groups (21 − 30y, 31 − 40y, 41 − 50y and 51 − 60y) of the normal adult population were found to have a significantly lower prevalence of HBsAg and HBV susceptibility but significantly higher prevalence of immunity via vaccination compared with corresponding age groups of the sub-total population. Conclusions Although high coverage has been established among infants and young children, their vaccination alone could not reduce HBV infection in the adult Chinese population quickly. Adult populations with more vaccinated individuals are found to have fewer individuals with HBsAg. Vaccination in adults or at least in high-risk adults is an urgent need to decrease horizontal HBV transmission in China.
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12
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Crespo J, Albillos A, Buti M, Calleja JL, Garcia-Samaniego J, Hernández-Guerra M, Serrano T, Turnes J, Acín E, Berenguer J, Berenguer M, Colom J, Fernández I, Fernández Rodríguez C, Forns X, García F, Granados R, Lazarus J, Molero JM, Molina E, Pérez Escanilla F, Pineda JA, Rodríguez M, Romero M, Roncero C, Saiz de la Hoya P, Sánchez Antolín G. Elimination of hepatitis C. Positioning document of the Spanish Association for the Study of the Liver (AEEH). ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.gastre.2019.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Crespo J, Albillos A, Buti M, Calleja JL, García-Samaniego J, Hernández-Guerra M, Serrano T, Turnes J, Acín E, Berenguer J, Berenguer M, Colom J, Fernández I, Fernández Rodríguez C, Forns X, García F, Rafael Granados, Lazarus JV, Molero JM, Molina E, Pérez Escanilla F, Pineda JA, Rodríguez M, Romero M, Roncero C, Saiz de la Hoya P, Sánchez Antolín G. Elimination of hepatitis C. Positioning document of the Spanish Association for the Study of the Liver (AEEH). GASTROENTEROLOGIA Y HEPATOLOGIA 2019; 42:579-592. [PMID: 31594683 DOI: 10.1016/j.gastrohep.2019.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 02/07/2023]
Abstract
The Spanish Association for the Study of the Liver (AEEH) is convinced that the elimination of hepatitisC virus (HCV) in Spain is possible as long as we are able to use the resources and tools necessary for it. This document reflects the position of the AEEH regarding the elimination of HCV, establishing a wide range of recommendations that can be grouped into five categories: 1)Screening of HCV according to age, of the existence of classic acquisition risk factors of infection, active search of previously diagnosed patients and development of micro-elimination strategies in vulnerable populations; 2)Simplification of HCV diagnosis (one-step diagnosis and diagnosis at the point of patient care); 3)Simplification of patient treatment and improvement of care circuits; 4)Health policy measures, and, finally, 5)Establishment of HCV elimination indicators.
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Affiliation(s)
- Javier Crespo
- Servicio de Digestivo, Hospital Universitario Marqués de Valdecilla, IDIVAL, Facultad de Medicina, UNICAN, Santander, España.
| | - Agustín Albillos
- Servicio de Digestivo, Hospital Universitario Ramón y Cajal, Facultad de Medicina, Universidad de Alcalá, Madrid, España
| | - María Buti
- Servicio de Hepatología, Hospital Universitario Vall d'Hebron y Ciberehd del Instituto Carlos III, Barcelona, España
| | - José Luis Calleja
- Servicio de Digestivo, Hospital Universitario Puerta de Hierro, Facultad de Medicina, Universidad Autónoma, Madrid, España
| | | | | | - Trinidad Serrano
- Hospital Universitario Lozano Blesa, ISS Aragón, Zaragoza, España
| | - Juan Turnes
- Servicio de Digestivo, Hospital Universitario de Pontevedra, Pontevedra, España
| | - Enrique Acín
- Área de Salud Pública, Subdirección General de Sanidad Penitenciaria, Secretaría General de II.PP. Ministerio del Interior, Madrid, España
| | - Juan Berenguer
- Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario Gregorio Marañón, IiSGM, Madrid, España
| | - Marina Berenguer
- Servicio de Digestivo, Hospital La Fe, Universidad de Valencia, Valencia y Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD) del Instituto Carlos III, Barcelona, España
| | - Joan Colom
- Dirección del Programa de Prevención, Control y Atención al VIH, las ITS y las Hepatitis Víricas, Subdirección general de Drogodependencias, Agencia de Salud Pública de Cataluña, Barcelona, España
| | - Inmaculada Fernández
- Servicio de Aparato Digestivo, Hospital Universitario 12 de Octubre, Madrid, España
| | - Conrado Fernández Rodríguez
- Unidad de Aparato Digestivo, Hospital Universitario Fundación Alcorcón, Comité científico de la SEPD, Alcorcón, Madrid, España
| | - Xavier Forns
- Servicio de Hepatología, Hospital Clínic, IDIBAPS y CIBEREHD, Universidad de Barcelona, Barcelona, España
| | - Federico García
- Servicio de Microbiología Clínica, Hospital Universitario San Cecilio, Instituto de Investigación Ibs Granada, Grupo de estudio de hepatitis de la Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica (GEHEP-SEIMC), Granada, España
| | - Rafael Granados
- Hospital Universitario de Gran Canarias Dr. Negrín, Las Palmas de Gran Canaria, España
| | - Jeffrey V Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, Universidad de Barcelona, Barcelona, España
| | | | - Esther Molina
- Servicio de Aparato Digestivo, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, La Coruña, España
| | - Fernando Pérez Escanilla
- Centro de Salud San Juan de Salamanca, Facultad de Medicina, USAL, Representante de SEMG, Salamanca, España
| | - Juan A Pineda
- Unidad de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Grupo para el Estudio de las Hepatitis Víricas (GEHEP) de la SEIMC, Sevilla, España
| | - Manuel Rodríguez
- Sección de Hepatología, Servicio de Digestivo, Hospital Universitario Central de Asturias, Oviedo, España
| | - Manuel Romero
- Servicio Digestivo, Hospital Universitario Virgen del Rocío, Facultad de Medicina, Universidad de Sevilla, Sevilla, España
| | - Carlos Roncero
- Servicio de Psiquiatría, Complejo Asistencial Universitario de Salamanca, Instituto de Biomedicina de Salamanca, Universidad de Salamanca, Salamanca, España
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Joob B, Wiwanitkit V. Required Treatment Expenditures for Hepatitis C Virus Infection and Advantage in the Reduction of Hepatocellular Carcinoma Incidence: Analysis of Possible Options in an Endemic Area. Indian J Med Paediatr Oncol 2019. [DOI: 10.4103/ijmpo.ijmpo_101_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Abstract
Background: Hepatitis C virus (HCV) infection is a known underlying factor contributing to hepatocellular carcinogenesis. The use of direct-acting antiviral (DAA) medication is a form of clinical management for controlling HCV infection and reducing the hepatocellular carcinoma incidence. This medication is introduced to several endemic areas. The big concern is on the treatment expenditures. Several alternative options are proposed and it is required to assess the effect of each alternative option. Objective: Here, the authors assessed and estimated the required treatment expenditures for HCV infection and advantage in the reduction of hepatocellular carcinoma incidence based on the analysis of possible options in an endemic area. Methods: A medical economics analysis was done. Results: According to the cost–utility analysis, the best alternative option that is hereby recommended is DAA medication coverage for all cases. Conclusion: DAA medication coverage for all cases is recommended.
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Affiliation(s)
- Beuy Joob
- Sanitation 1 Medical Academic Center, Bangkok, Thailand
| | - Viroj Wiwanitkit
- Department of Community Medicine, Dr. DY Patil University, Pune, Maharashtra, India
- Department of Tropicla Medicine, Hainan Medical University, Haikou, China
- Department of Medical Science, Faculty of Medicine, University of Nis, Niš, Serbia
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15
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Martin M, Vanichseni S, Leelawiwat W, Anekvorapong R, Raengsakulrach B, Cherdtrakulkiat T, Sangkum U, Mock PA, Leethochawalit M, Chiamwongpaet S, McNicholl JM, Kittimunkong S, Curlin ME, Choopanya K. Hepatitis C virus infection among people who inject drugs in Bangkok, Thailand, 2005-2010. WHO South East Asia J Public Health 2019; 8:50-55. [PMID: 30950431 PMCID: PMC7954142 DOI: 10.4103/2224-3151.255350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
BACKGROUND Approximately 1% of adults in Thailand are infected with hepatitis C virus (HCV). New direct-acting antiviral agents achieve sustained virologic responses in >95% of HCV-infected patients and are becoming available in countries around the world. To prepare for new HCV treatment options in Thailand, this study characterized HCV infections among people who inject drugs (PWID) in Bangkok. METHODS The Bangkok Tenofovir Study (BTS) was a pre-exposure prophylaxis trial conducted among PWID, 2005-2013. Blood specimens were randomly selected from PWID screened for the BTS, to test for anti-HCV antibody and HCV RNA. The HVR1 region was amplified by polymerase chain reaction, using multiplex primer sets with unique identifier sequences; amplification products were pooled in sets of 25; and consensus sequencing was performed to characterize individual HCV genotypes. RESULTS The median age of 3679 participants tested for anti-HCV antibody was 31 years, 3016 (82.0%) were male and 447 (12.2%) were HIV infected. The prevalence of anti-HCV antibody was 44.3%. The adjusted odds of testing positive for anti-HCV antibody were higher in men (adjusted odds ratio [aOR] 3.2, 95% confidence interval [CI] 2.4-4.3), those aged 40 years or older (aOR 2.7, 95% CI 2.1-3.5), those who had more than a primary school education (aOR 1.7, 95% CI 1.4-2.1), and those who tested HIV positive (aOR 5.2, 95% CI 3.7-7.4). HCV RNA was detected in 644 (81.3%) of the 792 anti-HCV antibody-positive specimens, yielding an HCV RNA-positive prevalence of 36.0% (95% CI 33.8-38.2). Among a random sample of 249 of the 644 specimens, 218 could be characterized, and the most common HCV subtypes were 1a (30.3%), 1b (12.8%), 3a (35.8%), 3b (6.9%) and 6n (8.7%). CONCLUSION The prevalence of anti-HCV antibody among PWID was 44.3% and more than one third (36.0%) were HCV RNA positive. Genotypes 1, 3 and 6 accounted for all typable infections. As the government of Thailand considers introduction of direct-acting antiviral medications for people with hepatitis C, it will be important to ensure that the medications target these subtypes.
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Affiliation(s)
- Michael Martin
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
- US Centers for Disease Control and Prevention, Division of HIV/AIDS Prevention, Atlanta, United States of America
| | | | - Wanna Leelawiwat
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
| | | | - Boonyos Raengsakulrach
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
| | - Thitima Cherdtrakulkiat
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
| | | | - Philip A Mock
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
| | | | | | - Janet M McNicholl
- US Centers for Disease Control and Prevention, Division of HIV/AIDS Prevention, Atlanta, United States of America
| | | | - Marcel E Curlin
- Thailand Ministry of Public Health – US Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
- Oregon Health and Science University, Portland, United States of America
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Wasitthankasem R, Vichaiwattana P, Siripon N, Posuwan N, Auphimai C, Klinfueng S, Thanetkongtong N, Vuthitanachot V, Saiyatha S, Thongmai C, Sochoo S, Sukthong P, Poovorawan K, Tangkijvanich P, Poovorawan Y. Birth-cohort HCV screening target in Thailand to expand and optimize the national HCV screening for public health policy. PLoS One 2018; 13:e0202991. [PMID: 30138441 PMCID: PMC6107264 DOI: 10.1371/journal.pone.0202991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 08/12/2018] [Indexed: 12/12/2022] Open
Abstract
The World Health Organization aims to eliminate HCV infection worldwide by 2030. A targeted HCV screening policy is currently unavailable in Thailand, but a decrease in HCV infection has been observed in the country. However, a previous study showed that there was a higher HCV seroprevalence in adults aged between 30–64 years in the Phetchabun province (15.5%), as compared to the Khon Kaen province (3.6%). It was hypothesized that young adults had a lower rate of HCV seropositivity; this was determined by the age distribution of anti-HCV in Phetchabun and with the identification of high seroprevalence birth cohorts. In order to compare the provincial findings to the national level, anti-HCV birth cohorts were further analyzed in Khon Kaen (averaged-HCV prevalence) as well as the Thai data set that was derived from the previous literature. Thai individuals aged between 18–30 years residing in Phetchabun (n = 1453) were recruited, tested for the presence of anti-HCV antibodies and viral RNA and completed questionnaires that were designed to identify HCV exposure risks. Data was collected and compiled from previously published articles (n = 1667, age 30–64 years). The HCV seropositivity in Phetchabun by age group (18–64, at 5-year intervals) and the birth year were tabulated parallel to the Khon Kaen data set (n = 2233) in conjunction with data from the national survey 2014 (n = 5964) representing the Thai population. Factors such as age, male gender, agricultural work, blood transfusion, intravenous drug use and having a tattoo were associated with anti-HCV positivity in Phetchabun. HCV seroprevalence was less than 4.0% (ranging from 0.0–3.5%) from the age of 18–34 years. A dramatic increase of 15.1% was found in adults aged greater than or equal to 35 years, whereas, the age group in Khon Kaen and the national population with increasing prevalence of HCV were older (≥40). The HCV seropositivity cohort accumulated for those born between 1951–1982 accounted for 71.4–100.0% of all seropositive individuals. Subsequently, new cases occurred sporadically. This finding provides evidence that there is a disproportionately high HCV seroprevalence among people born before 1983 (or aged ≥35). This cohort should be targeted for priority screening as part of the national HCV screening policy. Incorporating this birth cohort with other risk factors could improve HCV diagnostic rates, resulting in overall improvements in parallel to those given by novel antiviral treatment.
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Affiliation(s)
- Rujipat Wasitthankasem
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nipaporn Siripon
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nawarat Posuwan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chompoonut Auphimai
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sirapa Klinfueng
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | | | | | - Supapith Saiyatha
- Phetchabun Provincial Public Health Office, Mueang Phetchabun, Phetchabun, Thailand
| | - Chaiwat Thongmai
- Phetchabun Provincial Public Health Office, Mueang Phetchabun, Phetchabun, Thailand
| | - Saowakon Sochoo
- Lomkao Crown Prince Hospital, Na-saeng, Lom Kao, Phetchabun, Thailand
| | | | - Kittiyod Poovorawan
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Pisit Tangkijvanich
- Center of Excellence in Hepatitis and Liver Cancer, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- * E-mail:
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Warkad SD, Nimse SB, Song KS, Chantratita W, Pongthanapisith V, Nawale LU, Kim T. Performance of 6 HCV genotyping 9G test for HCV genotyping in clinical samples. Virol J 2018; 15:107. [PMID: 29996859 PMCID: PMC6042330 DOI: 10.1186/s12985-018-1017-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/21/2018] [Indexed: 12/17/2022] Open
Abstract
Background A treatment of HCV infection depends on the genotype and sub-genotype. Therefore, accurate HCV genotyping is critical for selecting the appropriate treatment regimen. Method This study included 280 plasma samples to evaluate the performance of 6 HCV Genotyping 9G test. The performance of 6 HCV Genotyping 9G test for accurate detection of HCV 1a, 1b, 2, 3, 4, and 6 genotypes was evaluated by comparing it with LiPA 2.0 assay and sequencing. Results 6 HCV Genotyping 9G test and LiPA 2.0 assay demonstrated 83.9% (n = 235) agreement. 39/45 samples that showed discrepant results between the two tests were analyzed by sequencing. Sequencing genotyped 39 discrepant samples as 0 (HCV 1a), 24 (HCV 1b), 1 (HCV 6f), 12 (HCV 6i), and 2 (HCV-negative). Results of 6 HCV Genotyping 9G test were very similar to the sequencing as it detected 1, 23, 1, 12, and 2 samples as HCV 1a, 1b, 3 & 6a or 6f, 6i or 6n, and negative, respectively. However, LiPA 2.0 assay showed complete disagreement with sequencing, as it did not detect any of these 39 samples correctly. These results indicate that LiPA 2.0 assay has limitations in identifying HCV genotypes 1b, and 6. The sensitivity, specificity, PPV, and NPV of 6 HCV Genotyping 9G test were 99.5, 98.8, 99.5, and 98.8%, respectively. It is important to note that HCV Genotyping 9G test showed 98.3 and 100% sensitivity for HCV 1b and 6 genotyping, respectively. However, LiPA 2.0 assay demonstrated 57.9 and 71.7% sensitivity for these genotypes. Conclusions 6 HCV Genotyping 9G test identifies HCV 1a, 1b, 2, 3, and 6 with good agreement with sequencing. Hence, 6 HCV Genotyping 9G test has a high clinical value because it can provide critical information to physicians and assist them to use the correct drug for efficient hepatitis C treatment. Electronic supplementary material The online version of this article (10.1186/s12985-018-1017-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shrikant Dasharath Warkad
- Institute for Applied Chemistry and Department of Chemistry, Hallym University, 1 Okcheon-dong, Chuncheon, 200-702, South Korea
| | - Satish Balasaheb Nimse
- Institute for Applied Chemistry and Department of Chemistry, Hallym University, 1 Okcheon-dong, Chuncheon, 200-702, South Korea
| | - Keum-Soo Song
- Institute for Applied Chemistry and Department of Chemistry, Hallym University, 1 Okcheon-dong, Chuncheon, 200-702, South Korea
| | - Wasun Chantratita
- Department of Pathology, Faculty of Medicine, Virology Laboratory, Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Viroj Pongthanapisith
- Department of Pathology, Faculty of Medicine, Virology Laboratory, Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Laxman Uddhav Nawale
- Institute for Applied Chemistry and Department of Chemistry, Hallym University, 1 Okcheon-dong, Chuncheon, 200-702, South Korea
| | - Taisun Kim
- Institute for Applied Chemistry and Department of Chemistry, Hallym University, 1 Okcheon-dong, Chuncheon, 200-702, South Korea.
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