Isothermal Nucleic Acid Amplification Technologies for the Detection of Equine Viral Pathogens.
Abstract: The global equine industry provides significant economic contributions worldwide, producing approximately USD $300 billion annually. However, with the continuous national and international movement and importation of horses, there is an ongoing threat of a viral outbreak causing large epidemics and subsequent significant economic losses. Additionally, horses serve as a host for several zoonotic diseases that could cause significant human health problems. The ability to rapidly diagnose equine viral diseases early could lead to better management, treatment, and biosecurity strategies. Current serological and molecular methods cannot be field-deployable and are not suitable for resource-poor laboratories due to the requirement of expensive equipment and trained personnel. Recently, isothermal nucleic acid amplification technologies, such as loop-mediated isothermal amplification (LAMP) and insulated isothermal polymerase chain reaction (iiPCR), have been developed to be utilized in-field, and provide rapid results within an hour. We will review current isothermal diagnostic techniques available to diagnose equine viruses of biosecurity and zoonotic concern and provide insight into their potential for in-field deployment.
Publication Date: 2021-07-20 PubMed ID: 34359278PubMed Central: PMC8300645DOI: 10.3390/ani11072150Google Scholar: Lookup
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Summary
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This research article is about the use of isothermal nucleic acid amplification technologies for quick detection of equine viral diseases, which are crucial for both the economic aspect of the equine industry and human health due to the potential of these diseases to become zoonotic.
Background on Equine Viral Pathogens
- The equine industry globally contributes significantly to the economy, making around $300 billion every year. This makes the control of viral outbreaks a vital economic concern.
- Horses are also known to be hosts for multiple zoonotic diseases – ones that can be transmitted to humans from animals, increasing the importance of prompt diagnosis and management.
- The international and national movement and importation of horses heightens the risk of viral outbreaks, which could cause substantial losses economically and potentially risk human health.
Challenges with Current Diagnostic Methods
- At present, serological and molecular methods used for diagnosing equine viral diseases are not practical for field use. This is due to the need for expensive equipment and specially trained personnel to operate them.
- Such complexities make these diagnostic methods unsuitable for resource-poor labs, thus emphasizing the need for simpler and more accessible techniques.
Use of Isothermal Nucleic Acid Amplification Technologies
- Recently, technologies such as Loop-mediated Isothermal Amplification (LAMP) and Insulated Isothermal Polymerase Chain Reaction (iiPCR) have been developed.
- These new techniques utilize isothermal nucleic acid amplification which is beneficial in detecting equine viral pathogens. They are easier and more practical to operate in-field, and the results can be obtained rapidly – within an hour, making them highly efficient.
- This article aims to review these isothermal diagnostic techniques currently being used in diagnosing equine viruses of biosecurity and zoonotic concern. The focus will be to understand their potential for quick detection and management in the field.
Cite This Article
APA
Knox A, Beddoe T.
(2021).
Isothermal Nucleic Acid Amplification Technologies for the Detection of Equine Viral Pathogens.
Animals (Basel), 11(7), 2150.
https://doi.org/10.3390/ani11072150 Publication
Researcher Affiliations
- Department of Animal, Plant and Soil Sciences and Centre for AgriBioscience La Trobe University, Bundoora, VIC 2082, Australia.
- Department of Animal, Plant and Soil Sciences and Centre for AgriBioscience La Trobe University, Bundoora, VIC 2082, Australia.
Grant Funding
- n/a / Cooperative Research Centres Project
- n/a / Defence Science Institute
Conflict of Interest Statement
The authors declare no conflict of interest.
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Citations
This article has been cited 9 times.- Knox A, Zerna G, Beddoe T. Current and Future Advances in the Detection and Surveillance of Biosecurity-Relevant Equine Bacterial Diseases Using Loop-Mediated Isothermal Amplification (LAMP). Animals (Basel) 2023 Aug 18;13(16).
- Bohorquez JA, Lanka S, Rosell R, Pérez-Simó M, Alberch M, Rodriguez F, Ganges L, Maddox CW. Efficient detection of African Swine Fever Virus using minimal equipment through a LAMP PCR method. Front Cell Infect Microbiol 2023;13:1114772.
- Velayudhan BT, Naikare HK. Point-of-care testing in companion and food animal disease diagnostics. Front Vet Sci 2022;9:1056440.
- Wu Y, Bai L, Ye C, Yuhong Guan, Kunming Yan, Chen H, Jiang Z. Novel miniaturized fluorescence loop-mediated isothermal amplification detection system for rapid on-site virus detection. Front Bioeng Biotechnol 2022;10:964244.
- Steinman A, Erster O, Tirosh-Levy S. Virus Infection in Equine. Animals (Basel) 2022 Apr 8;12(8).
- Wang C, Bai X, Wang J, Ye D, Dou L, Yang Z. Exploring the diagnostic landscape of Mannheimia haemolytica: technologies, applications, and perspectives. Front Microbiol 2025;16:1680478.
- Siddiqui SM, Welch NL, Nguyen TG, Razmi A, Chang T, Senft R, Arizti-Sanz J, Mirhashemi ME, Stirling DR, Ackerman CM, Cimini BA, Blainey PC, Sabeti PC, Myhrvold C. Bead-based approaches for increased sensitivity and multiplexing of CRISPR diagnostics. Nat Biomed Eng 2025 Sep 22;.
- Knox A, Zerna G, Beddoe T. Development of a Rapid Surveillance System for Ross River Virus in Mosquitoes Through Reverse-Transcription Loop-Mediated Isothermal Amplification (RT-LAMP). Transbound Emerg Dis 2025;2025:1772438.
- Knox A, Beddoe T. Enhancement of loop-mediated isothermal amplification (LAMP) with guanidine hydrochloride for the detection of Streptococcus equi subspecies equi (Strangles). PeerJ 2024;12:e17955.
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