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Zhang XZ, Wang ZQ, Cui J. Epidemiology of trichinellosis in the People's Republic of China during 2009-2020. Acta Trop 2022; 229:106388. [PMID: 35231417 DOI: 10.1016/j.actatropica.2022.106388] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 02/20/2022] [Accepted: 02/25/2022] [Indexed: 11/25/2022]
Abstract
Trichinellosis is an important meat-borne zoonotic parasitic disease caused by ingesting raw or semi-cooked meat of pigs and other animals infected with Trichinella sp. muscle larvae. Epidemiological data on human and animal Trichinella sp. infection in the People's Republic of China (PRC) during 2009-2020 were analyzed in this review. The results showed that the endemic foci of human trichinellosis are principally localized in southwestern areas, and eight outbreaks covering 479 cases and 2 deaths were reported. Pork is still the primary source of trichinellosis outbreaks. Seven out of 8 outbreaks (87.50%) were caused by ingesting raw or semi-cooked pork. The seroprevalence of swine anti-Trichinella IgG ranged from 0 to 42.11% in 11 provinces/autonomous regions (P/As), and swine Trichinella infection was detected in six P/A slaughterhouses. The Trichinella-infected pigs came from small backyard farms and outdoor free-ranging pigs in western and southwestern PRC. To prevent trichinellosis, the traditional pig-rearing mode should be improved, more industrialized pig farms should be developed, all pigs should be raised in piggeries under controlled management conditions, and mandatory inspection of Trichinella sp. in slaughtered pigs should be implemented in rural areas of western and southwestern PRC. A One Health approach with participation from governments, public health officials, and medical and veterinary practitioners is vital for controlling zoonotic foodborne trichinellosis.
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Liu Y, Dong Z, Pang J, Liu M, Jin X. Prevalence of meat-transmitted Taenia and Trichinella parasites in the Far East countries. Parasitol Res 2021; 120:4145-4151. [PMID: 33768333 DOI: 10.1007/s00436-021-07124-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/14/2021] [Indexed: 12/21/2022]
Abstract
Taenia and Trichinella parasites are globally distributed foodborne zoonotic pathogens transmitted from animal to humans via consumption of raw or undercooked meats. This short review is intended to provide the parasites community a snapshot of the literature on the current and recent prevalence of taeniasis and trichinellosis in humans and animals in the Far East countries. Prevalence rates in these countries are highly diverse due to differences in development, culture, ethnic and religious background, animal forming practices, and eating habits. Taenia and Trichinella remain as important meat-transmitted pathogens in the Far East. A One Health approach is needed to eliminate or continuously reduce the foodborne zoonotic taeniasis and trichinellosis in the Far East.
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Affiliation(s)
- Yi Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Zijian Dong
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Jianda Pang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Mingyuan Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225000, Jiangsu, China.
| | - Xuemin Jin
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
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Abstract
Although there have been occasional reports of rare and low-level trichinellae infestation in beavers, no human cases of beaver-associated trichinellosis have been described. This report presents a possible case of human trichinellosis linked to beaver meat. Increasing consumption of beaver meat necessitates raising awareness of this potential source of trichinellosis.
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Meat sources of infection for outbreaks of human trichinellosis. Food Microbiol 2017; 64:65-71. [DOI: 10.1016/j.fm.2016.12.012] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 12/21/2016] [Indexed: 11/17/2022]
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Study on the mitochondrial apoptosis pathways of small cell lung cancer H446 cells induced by Trichinella spiralis muscle larvae ESPs. Parasitology 2017; 144:793-800. [PMID: 28073393 DOI: 10.1017/s0031182016002535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Trichinella spiralis (T.spiralis) muscle-larva (ML) excretory-secretory proteins (ESPs) contain antitumour-active substances. ESPs have been shown to inhibit tumour growth. To explore the effects of these proteins on small cell lung cancer cells and the possible mechanisms of their antineoplastic action, H446 SCLC cells were co-cultured with different concentrations of T. spiralis ML ESPs for 12, 24 and 48 h. Our results showed that T. spiralis ML ESPs significantly inhibited H446 cell proliferation, which was dose-and time-dependent. The results of flow cytometry testing indicate a clear apoptosis trend in H446 cells co-cultured with ESPs for 24 h. Reverse transcription polymerase chain reaction and Western blotting results showed increased expression of pro-apoptosis genes Bax, Cyt-C, Apaf-1, caspase-9 and caspase-3, compared with the negative control group, and decreased the expression of anti-apoptosis genes Bcl-2 and Livin. Our results suggest that T. spiralis ML ESPs can induce apoptosis in H446 cells through a mitochondrial pathway, which may be a mechanism of antineoplastic action in T. spiralis ML ESPs.
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Trichinella spiralis infection and transplacental passage in human pregnancy. Vet Parasitol 2016; 231:2-7. [DOI: 10.1016/j.vetpar.2016.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 06/04/2016] [Accepted: 06/11/2016] [Indexed: 11/21/2022]
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RETROSPECTIVE ANALYSIS OF THE EPIDEMIOLOGIC LITERATURE, 1990-2015, ON WILDLIFE-ASSOCIATED DISEASES FROM THE REPUBLIC OF KOREA. J Wildl Dis 2016; 53:5-18. [PMID: 27705103 DOI: 10.7589/2015-12-348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To assess the status of research on wildlife diseases in the Republic of Korea (ROK) and to identify trends, knowledge gaps, and directions for future research, we reviewed epidemiologic publications on wildlife-associated diseases in the ROK. We identified a relatively small but rapidly increasing body of literature. The majority of publications were focused on public or livestock health and relatively few addressed wildlife health. Most studies that focused on human and livestock health were cross-sectional whereas wildlife health studies were mostly case reports. Fifteen diseases notifiable to the World Organisation for Animal Health were identified and 21 diseases were identified as notifiable to either the Korea Ministry of Health and Welfare or the Korea Ministry of Agriculture, Food and Rural Affairs. Two diseases were reported as occurring as epidemics; highly pathogenic avian influenza (HPAI) and virulent Newcastle disease. Six diseases or disease agents were described in the literature as emerging including HPAI, rabies, Babesia microti , avian coronaviruses, scrub typhus, and severe fever thrombocytopenia syndrome virus. The diseases for which there were the largest number of publications were HPAI and rabies. The majority of wildlife-associated zoonotic disease publications focused on food-borne parasitic infections or rodent-associated diseases. Several publications focused on the potential of wildlife as reservoirs of livestock diseases; in particular, Korean water deer ( Hydropotes inermis argyropus ) and wild boar ( Sus scrofa ). In contrast, there were few publications on diseases of concern for wildlife populations or research to understand the impacts of these diseases for wildlife management. Increased focus on prospective studies would enhance understanding of disease dynamics in wildlife populations. For the high-consequence diseases that impact multiple sectors, a One Health approach, with coordination among the public health, agricultural, and environmental sectors, would be important. This type of review can provide useful information for countries or regions planning or implementing national wildlife health programs.
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Jeong JT, Seo M, Hong ST, Kim YK. An outbreak of trichinellosis by consumption of raw soft-shelled turtle meat in Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2015; 53:219-22. [PMID: 25925182 PMCID: PMC4416374 DOI: 10.3347/kjp.2015.53.2.219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 03/10/2015] [Accepted: 03/14/2015] [Indexed: 11/23/2022]
Abstract
Trichinellosis transmission to humans via the consumption of reptile meat is rare worldwide. In Korea, however, 2 such outbreaks, possibly via consumption of soft-shelled turtle meat, have occurred in 2 successive years. In 17 August 2014, 6 patients were admitted to Wonju Severance Christian Hospital complaining of myalgia, fever, and headache. Eosinophilia was the indication of the initial laboratory results, and they were eventually diagnosed as trichinellosis by ELISA. All of the patients worked at the same company and had eaten raw soft-shelled turtle meat at a company dinner 10 days prior to their admission. They were treated with albendazole for 2 weeks, upon which all of their symptoms disappeared. This is the 8th report on human trichinellosis in Korea, and the second implicating raw soft-shelled turtle meat.
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Affiliation(s)
- Joon Taek Jeong
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, Korea
| | - Min Seo
- Department of Parasitology, Dankook University College of Medicine, Cheonan 330-714, Korea
| | - Sung-Tae Hong
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Young Keun Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, Korea
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Lee HJ, Chung OS, Kim JL, Lee SH, Yoo YB, Seo M. Seroprevalence of Trichinella sp. in Wild Boars (Sus scrofa) from Yanggu-gun, Gangwon-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2015; 53:233-6. [PMID: 25925185 PMCID: PMC4416366 DOI: 10.3347/kjp.2015.53.2.233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 12/25/2014] [Accepted: 01/21/2015] [Indexed: 11/23/2022]
Abstract
A total 7 outbreaks of trichinellosis have occurred in Korea, mostly as a result of consumption of raw wild boar (Sus scrofa) meat. Since only 1 serological survey on wild boars had yet been performed in Korea, the present study aimed to estimate the prevalence of trichinellosis in wild boars and some species of rodents by artificial digestion and serological examinations in Yanggu-gun, Gangwon-do, the endemic area of trichinellosis. Both the wild boar and rodent muscle samples revealed no Trichinella larvae by direct examination and artificial digestion method. However, serological examinations revealed that 4 wild boar sera samples out of 118 (3.4%) were positive to Trichinella antigen. Although the recovery of Trichinella larvae ended in a failure, it is proved for the first time that the sylvatic cycle of Trichinella has been maintained in wild boars of Gangwon-do, Korea.
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Affiliation(s)
- Hye-Jung Lee
- Department of Parasitology and Research Center for Mummy, College of Medicine, Dankook University, Cheonan 330-714, Korea
| | - Ok-Sik Chung
- Division of Ecology and Environment, Chungnam Development Institute, Gongju 314-140, Korea
| | - Jae-Lip Kim
- Department of Parasitology and Tropical Medicine, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Seung-Ha Lee
- Department of Biomedical Engineering, College of Medicine, Dankook University, Cheonan 330-714, Korea
| | - Young-Bok Yoo
- Department of Anatomy, College of Medicine, Dankook University, Cheonan 330-714, Korea
| | - Min Seo
- Department of Parasitology and Research Center for Mummy, College of Medicine, Dankook University, Cheonan 330-714, Korea
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Kang SW, Doan HTT, Noh JH, Choe SE, Yoo MS, Kim YH, Reddy KE, Nguyen TTD, Van Quyen D, Nguyen LTK, Kweon CH, Jung SC. Seroprevalence of Toxoplasma gondii and Trichinella spiralis infections in wild boars (Sus scrofa) in Korea. Parasitol Int 2013; 62:583-5. [DOI: 10.1016/j.parint.2013.08.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 08/01/2013] [Accepted: 08/29/2013] [Indexed: 11/17/2022]
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