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Pinheiro KMP, Guinati BGS, Moreira NS, Coltro WKT. Low-Cost Microfluidic Systems for Detection of Neglected Tropical Diseases. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2023; 16:117-138. [PMID: 37068747 DOI: 10.1146/annurev-anchem-091522-024759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neglected tropical diseases (NTDs) affect tropical and subtropical countries and are caused by viruses, bacteria, protozoa, and helminths. These kinds of diseases spread quickly due to the tropical climate and limited access to clean water, sanitation, and health care, which make exposed people more vulnerable. NTDs are reported to be difficult and inefficient to diagnose. As mentioned, most NTDs occur in countries that are socially vulnerable, and the lack of resources and access to modern laboratories and equipment intensify the difficulty of diagnosis and treatment, leading to an increase in the mortality rate. Portable and low-cost microfluidic systems have been widely applied for clinical diagnosis, offering a promising alternative that can meet the needs for fast, affordable, and reliable diagnostic tests in developing countries. This review provides a critical overview of microfluidic devices that have been reported in the literature for the detection of the most common NTDs over the past 5 years.
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Affiliation(s)
| | | | - Nikaele S Moreira
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil;
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil;
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Campinas, Brazil
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Bhumiratana A, Nunthawarasilp P, Intarapuk A, Pimnon S, Ritthison W. Emergence of zoonotic Brugia pahangi parasite in Thailand. Vet World 2023; 16:752-765. [PMID: 37235155 PMCID: PMC10206978 DOI: 10.14202/vetworld.2023.752-765] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/09/2023] [Indexed: 05/28/2023] Open
Abstract
Zoonotic Brugia pahangi parasite infections in humans have emerged over two decades in Southeast Asia (SEA), including Malaysia and Thailand. The species is commonly found in domestic cats and dogs as the natural reservoir hosts. The sporadic transmission pattern of B. pahangi zoonosis causes childhood infections in Thailand and adulthood infections in Malaysia. It is crucial to understand the vulnerability in how zoonotic B. pahangi parasite is transmitted to susceptible persons in receptive settings and the exposure to the infection under impoverished environment to which the human-vector-animal interactions are related. This acquisition of knowledge will help multiple health science professions to apply One Health approach to strengthening the capacity in diagnosis and surveillance, and hence detecting and monitoring the "lingering" zoonotic B. pahangi infections present in vulnerable populations in Thailand and elsewhere in SEA. In this review article, the authors focused on articulating the concepts of plantation-related zoonotic B. pahangi filariasis by updating current knowledge of B. pahangi life cycle, vector's life cycle and current state of research on the epidemiology and ecology of B. pahangi zoonosis.
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Affiliation(s)
- Adisak Bhumiratana
- Thammasat University Research Unit in One Health and EcoHealth, Pathum Thani, Thailand
- Faculty of Public Health, Thammasat University, Pathum Thani 12121, Thailand
| | | | - Apiradee Intarapuk
- Faculty of Veterinary Medicine, Mahanakorn University of Technology, Bangkok 10530, Thailand
| | - Suntorn Pimnon
- Faculty of Public Health, Bangkokthonburi University, Bangkok 10170, Thailand
| | - Wanapa Ritthison
- Office of Disease Prevention and Control, Region 6 Chonburi, Thailand
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Asawakarn S, Pimpin A, Jeamsaksiri W, Sripumkhai W, Jitsamai W, Taweethavonsawat P, Piyaviriyakul P. Application of a novel rectangular filtering microfluidic device for microfilarial detection. Front Vet Sci 2023; 9:1048131. [PMID: 36686171 PMCID: PMC9853162 DOI: 10.3389/fvets.2022.1048131] [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: 09/19/2022] [Accepted: 12/12/2022] [Indexed: 01/08/2023] Open
Abstract
The rectangular filtering microfluidic chip was invented using microfluidics device fabrication technology and can separate living microfilariae from blood samples without a syringe pump. The diagnostic results are highly effective. The device is based on the principle of separating millions of blood cells from microfilariae using a rectangular filter structure. It disperses fluid evenly into the flow-passage channel, and its rectangular filter structure is the key to success in reducing the pressure and separating blood cells from microfilariae effectively. The flow rate and blood cell concentration were optimized in our study. The chip is intended to be a point-of-care device that can reduce the use of superfluous instrumentation in the field. The technology is designed to be rapid, accurate, and easy-to-use for all users, especially those in remote areas.
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Affiliation(s)
- Sariya Asawakarn
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand,Biomarkers in Animal Parasitology Research Group, Chulalongkorn University, Bangkok, Thailand
| | - Alongkorn Pimpin
- Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand,Micro/Nano Electromechanical Integrated Device Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | | | | | - Wanarit Jitsamai
- Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyanan Taweethavonsawat
- Biomarkers in Animal Parasitology Research Group, Chulalongkorn University, Bangkok, Thailand,Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Prapruddee Piyaviriyakul
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand,*Correspondence: Prapruddee Piyaviriyakul ✉
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Haynes E, Cleveland CA, Garrett KB, Grunert RKA, Bryan JA, Sidouin M, Oaukou PT, Ngandolo BNR, Yabsley MJ. Characterization of the genetics and epidemiology of Brugia sp. in domestic dogs in Chad, Africa. Vet Parasitol Reg Stud Reports 2022; 35:100784. [PMID: 36184112 DOI: 10.1016/j.vprsr.2022.100784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 08/31/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Neglected tropical diseases pose a threat to domestic animal health, as domestic animals can serve as reservoirs for certain zoonotic parasitic infections, including Guinea worm (Dracunculus medinensis) and lymphatic filariasis. Surveillance for these parasites in domestic animals is needed to understand infection prevalence and transmission cycles, with the goal of instituting appropriate interventions. The goal of this research was to report our finding of Brugia sp. infection in dogs from Chad, Africa, and to characterize the genetics and epidemiology of the parasite. During a recent Chadian canine pathogen surveillance project, we identified Brugia sp. infections in a total of 46 out of 428 dogs (10.7%) sampled at three time points in 2019-2020. We found high levels of sequence similarity to B. malayi and B. pahangi based on amplification of 18S rRNA, 5.8S rRNA, and ITS-2 regions. Phylogenetic analysis of 18S rRNA gene sequences placed the Chadian Brugia sp. in a clade with other Brugia spp. but grouped it separately from both B. malayi and B. pahangi. Analysis of Hha I sequences showed the greatest similarity with B. patei, a parasite previously reported from dogs, cats, and wildlife hosts in Kenya. Epidemiologic analysis using generalized linear regression modeling found significantly higher odds of Brugia sp. detection among dogs in villages in southern Chad compared to those in the northern region. Further, within the northern region, there were higher odds of detection in the dry season, compared to the wet season, which is consistent with the ecology of a presumably mosquito-borne parasite. The same 428 dogs were tested for Dirofilaria immitis antigen using a commercial assay (IDEXX SNAP 4Dx) at the earliest time point of the study, with 119 dogs testing positive. However, no association was noted between Brugia infection and a dog being positive for Di. immitis antigen, with only seven of the 119 Di. immitis antigen-positive dogs being Brugia-positive. This is the first report of Brugia sp. in domestic dogs in Chad and additional research is needed to definitively identify the species present, elucidate transmission, and understand potential risks to canine and human health.
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Affiliation(s)
- Ellen Haynes
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, Wildlife Health Building, 589 D.W, Brooks Dr, Athens, GA 30602, USA.
| | - Christopher A Cleveland
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, Wildlife Health Building, 589 D.W, Brooks Dr, Athens, GA 30602, USA
| | - Kayla B Garrett
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, Wildlife Health Building, 589 D.W, Brooks Dr, Athens, GA 30602, USA; Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA
| | - Ryan K A Grunert
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, Wildlife Health Building, 589 D.W, Brooks Dr, Athens, GA 30602, USA; Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA
| | - John A Bryan
- Zachery Consulting LLC, 2595 Rogers Mill Road, Danielsville, GA 30633, USA
| | - Metinou Sidouin
- The Carter Center, 453 Freedom Pkwy NE, Atlanta, GA 30307, USA
| | | | | | - Michael J Yabsley
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, Wildlife Health Building, 589 D.W, Brooks Dr, Athens, GA 30602, USA; Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA; Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA 30602, USA.
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Tantipat C, Wongkamchai M, Saelai K, Amesombun A, Wongkamchai S. A rare case of ocular filariasis caused by Brugia malayi. Parasitol Int 2022; 90:102606. [PMID: 35659633 DOI: 10.1016/j.parint.2022.102606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 10/18/2022]
Abstract
Extra-lymphatic manifestation of filariasis is uncommon and may usually be clinically misdiagnosed. The extra lymphatic presentation of Brugia malayi may due to the site of entry of the infective larvae, and only a few cases have been proven for the causative species. We report here a 59-year-old woman presented with swollen right conjunctiva and complaint of migratory swelling at her eyelid, which has turned out to be ocular filariasis by B. malayi in Chantaburi province, Thailand. This report highlights the increasing cases of B. malayi as a causative agent of ocular filariasis in human.
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Affiliation(s)
| | - Metta Wongkamchai
- Department of Parasitology and (c)Department of Pathology, Faculty of Medicine Siriraj Hospital Mahidol University, Bangkok 10700, Thailand
| | - Kati Saelai
- Prapokklao Hospital, Chanthaburi 22000, Thailand
| | - Ameorn Amesombun
- Department of Pathology, Faculty of Medicine Siriraj Hospital Mahidol University, Bangkok 10700, Thailand
| | - Sirichit Wongkamchai
- Department of Parasitology and (c)Department of Pathology, Faculty of Medicine Siriraj Hospital Mahidol University, Bangkok 10700, Thailand.
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Semi-Automated Microfluidic Device Combined with a MiniPCR-Duplex Lateral Flow Dipstick for Screening and Visual Species Identification of Lymphatic Filariae. MICROMACHINES 2022; 13:mi13020336. [PMID: 35208460 PMCID: PMC8880723 DOI: 10.3390/mi13020336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 11/17/2022]
Abstract
Lymphatic filariasis (LF) is a leading cause of permanent disability worldwide that has been listed as a neglected tropical disease by the World Health Organization. Significant progress made by the Global Program to Eliminate Lymphatic Filariasis (GPELF) has led to a substantial decline in the population of the worm that causes LF infection. Diagnostic assays capable of detecting low levels of parasite presence are needed to diagnose LF. There is also a need for new tools that can be used in areas where multiple filarial species are coendemic and for mass screening or for use in a point-of-care setting. In the present study, we applied our previously developed semi-automated microfluidic device in combination with our recently developed mini polymerase chain reaction (miniPCR) with a duplex lateral flow dipstick (DLFD) (miniPCR-DLFD) for rapid mass screening and visual species identification of lymphatic filariae in human blood. The study samples comprised 20 Brugia malayi microfilariae (mf) positive human blood samples, 14 Wuchereria bancrofti mf positive human blood samples and 100 mf negative human blood samples. Microfilariae detection and visual species identification was performed using the microfluidic device. To identify the species of the mf trapped in the microfluidic chips, DNA of the trapped mf was extracted for miniPCR amplification of W. bancrofti and B. malayi DNA followed by DLFD. Thick blood smear staining for microfilariae detection was used as the gold standard technique. Microfilariae screening and visual species identification using our microfluidic device plus miniPCR-DLFD platform yielded results concordant with those of the gold standard thick blood smear technique. The microfluidic device, the miniPCR and the DLFD are all portable and do not require additional equipment. Use of this screening and visual species identification platform will facilitate reliable, cost-effective, and rapid surveillance for the presence of LF infection in resource-poor settings.
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Giubega S, Imre M, Ilie MS, Imre K, Luca I, Florea T, Dărăbuș G, Morariu S. Identity of Microfilariae Circulating in Dogs from Western and South-Western Romania in the Last Decade. Pathogens 2021; 10:pathogens10111400. [PMID: 34832556 PMCID: PMC8618794 DOI: 10.3390/pathogens10111400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 01/17/2023] Open
Abstract
Dirofilaria infections in dogs are recognized as widespread mosquito-borne diseases with zoonotic potential, that are caused by the filarioid nematode (Onchocercidae) species Dirofilaria immitis and Dirofilaria repens. The long-term survey conducted in western and south-western Romania was undertaken in order to provide valuable data on the occurrence of Dirofilaria infections in dogs. Blood samples from 1088 dogs, originating from 73 localities of 11 western and south-western counties in Romania, were collected and examined using the modified Knott test. Subsequently, all of the microscopically positive samples were subjected to molecular analysis for confirmation. Altogether, the data obtained showed the percentage of dogs with circulating microfilariae to be 21.42% (233/1088) of dogs tested in the investigated region. The identified species, in cases of monoinfections, were D. immitis, D. repens, and Acanthocheilonema reconditum in 106 (9.74%) samples, 102 (9.38%) samples, and 1 (0.09%) sample, respectively. Twenty-four (2.21%) samples were simultaneously positive for D. immitis and D. repens. There was no association (p > 0.05) between infection status and breed; however, sex and lifestyle were positively associated (p < 0.05) with the percentage of dogs with circulating microfilariae and might be regarded as risk factors for infection. The results of the present investigation indicate potential zoonotic risks for humans living in the screened area and support the imperative to increase awareness among both veterinarians and physicians, regarding the continuous spread of these zoonotic filariae.
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Affiliation(s)
- Simona Giubega
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
| | - Mirela Imre
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
| | - Marius Stelian Ilie
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
- Correspondence: ; Tel.: +40-256-277-190
| | - Kálmán Imre
- Department of Animal Production and Veterinary Public Health, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania;
| | - Iasmina Luca
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
| | - Tiana Florea
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
| | - Gheorghe Dărăbuș
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
| | - Sorin Morariu
- Department of Parasitology and Dermatology, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania; (S.G.); (M.I.); (I.L.); (T.F.); (G.D.); (S.M.)
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