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Co-Immunization Efficacy of Recombinant Antigens against Rhipicephalus microplus and Hyalomma anatolicum Tick Infestations. Pathogens 2023; 12:pathogens12030433. [PMID: 36986356 PMCID: PMC10058648 DOI: 10.3390/pathogens12030433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 03/12/2023] Open
Abstract
The immunoprophylactic management of ticks is the most effective option to control tick infestations and counter spread the acaricide resistance problem worldwide. Several researchers reported an inconsistent efficacy of the single antigen-based immunization of hosts against different tick species. In the present study, to develop a multi-target immunization protocol, proteins from Rhipicephalus microplus BM86 and Hyalomma anatolicum subolesin (SUB) and tropomyosin (TPM) were targeted to evaluate the cross-protective potential. The sequence identities of the BM86, SUB, and TPM coding genes amongst Indian tick isolates of targeted species were 95.6–99.8%, 98.7–99.6%, and 98.9–99.9%, respectively, while at the predicted amino acid level, the identities were 93.2 to 99.5, 97.6 to 99.4, and 98.2 to 99.3%. The targeted genes were expressed in the eukaryotic expression system, pKLAC2-Kluyveromyces lactis, and 100 µg each of purified recombinant protein (Bm86-89 kDa, SUB-21 kDa, and TPM-36 kDa) mixed with adjuvant was injected individually through the intramuscular route at different sites of the body on days 0, 30, and 60 to immunize cross-bred cattle. Post-immunization, a statistically significant (p < 0.001) antibody response (IgG, IgG1, and IgG2) in comparison to the control, starting from 15 to 140 days, against each antigen was recorded. Following multi-antigen immunization, the animals were challenged twice with the larvae of R. microplus and H. anatolicum and theadults of H. anatolicum, and a significant vaccine efficacy of 87.2% and 86.2% against H. anatolicum larvae and adults, respectively, and 86.7% against R. microplus was obtained. The current study provides significant support to develop a multi-antigen vaccine against cattle tick species.
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Disler G, Schlaht R, Hahn MB. Perspectives on and prevalence of ticks and tick-borne diseases in Alaskan veterinary clinics. J Am Vet Med Assoc 2022; 261:1-8. [PMID: 35921400 PMCID: PMC10424748 DOI: 10.2460/javma.22.04.0162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objective To assess knowledge, attitudes, and practices (KAP) of veterinary personnel and pet owners regarding ticks and tick-borne diseases in Alaska and to conduct a serosurvey for tick-borne disease pathogens among domestic animals visiting veterinary clinics for preventative care. Sample Across 8 veterinary clinics, we sampled 31 veterinary personnel, 81 pet owners, 102 client-owned dogs, and 1 client-owned cat. Procedures Information on KAP among veterinary staff and pet owners was collected via self-administered questionnaires. Tick and tick-borne disease prevalence were assessed via tick checks and benchtop ELISA antibody tests detecting Anaplasma phagocytophilum, Anaplasma platys, Erlichia canis, Erlichia ewingii, and Borrelia burgdorferi. Results The veterinary personnel KAP survey showed a low average knowledge score (53.5%) but a moderate attitude score (71.7%). In contrast, owner average knowledge score was higher (67.5%) and attitude score was comparatively low (50.6%). Both veterinary personnel and owners had low average practice scores (64.5% and 56.3%, respectively). One dog was positive for anaplasmosis (unknown species) antibody, and 1 dog was positive for B burgdorferi antibody. No ticks were found during the study. Clinical Relevance This study was the first of its kind in the state and indicated a low prevalence of ticks and tick-borne diseases in the domestic pet population and highlighted significant knowledge gaps that could be targeted by public health efforts. Our results suggest the value of a One Health approach and of the veterinary-client relationship to address ticks and tick-borne diseases.
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Affiliation(s)
- Gale Disler
- Institute for Circumpolar Health Studies, University of Alaska, Anchorage, AK
| | | | - Micah B. Hahn
- Institute for Circumpolar Health Studies, University of Alaska, Anchorage, AK
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Crist SD, Kopsco H, Miller A, Gronemeyer P, Mateus-Pinilla N, Smith RL. Knowledge, attitudes, and practices of veterinary professionals towards ticks and tick-borne diseases in Illinois. One Health 2022; 14:100391. [PMID: 35686148 PMCID: PMC9171534 DOI: 10.1016/j.onehlt.2022.100391] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 12/02/2022] Open
Abstract
Objective A lack of standardized surveillance or reporting of tick-borne diseases (TBDs) in Illinois creates uncertainty for veterinarians regarding TBDs occurring within their practice geography or which TBDs may be encroaching on their area from neighboring territories. Therefore, the objective of this study was to gauge the knowledge, attitudes, and practices of veterinary professionals in Southern and Central Illinois to establish a foundation for targeting educational and outreach programs that address knowledge gaps. Sample 72 veterinary professionals in Central and Southern Illinois. Procedures An online knowledge, attitudes, and practices survey was distributed to veterinary professionals in Southern and Central Illinois. Poisson regression analyses were conducted to determine factors associated with knowledge scores and the estimated number of TBD cases diagnosed. Results Knowledge scores were significantly higher among veterinary practitioners with recent (within the last 5 years) training on TBD. The number of cases of TBD diagnosed was higher among those reporting concern about TBD, and among those who routinely test for TBDs. The types of diseases diagnosed were heavily influenced by the diagnostic method used. Clinical relevance This study paints a cohesive picture of human factors associated with diagnosing veterinary diseases and TBD prevalence in Southern and Central Illinois. Our results highlight the importance and practical value of veterinary continuing education on ticks and TBDs for both companion animals and public health. Building capacity for training veterinarians in parasitology using partnerships between academia and industry may strengthen the knowledge and understanding of ticks and tick-borne pathogens in the veterinary community.
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Are Orienteers Protected Enough against Tick Bites? Estimating Human Exposure to Tick Bites through a Participative Science Survey during an Orienteering Competition. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18063161. [PMID: 33803910 PMCID: PMC8003242 DOI: 10.3390/ijerph18063161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 11/17/2022]
Abstract
Mass-participation events in temperate forests are now well-established features of outdoor activities and represent high-risk activities regarding human exposition to tick bites. In this study we used a citizen science approach to quantify the space-time frequency of tick bites and undetected tick bites among orienteers that participated in a 6-day orienteering competition that took place in July 2018 in the forests of Eastern France, and we looked at the use and efficacy of different preventive behaviors. Our study confirms that orienteers are a high-risk population for tick bites, with 62.4% of orienteers bitten at least once during the competition, and 2.4 to 12.1 orienteers per 100 orienteers were bitten by ticks when walking 1 km. In addition, 16.7% of orienteers bitten by ticks had engorged ticks, meaning that they did not detect and remove their ticks immediately after the run. Further, only 8.5% of orienteers systematically used a repellent, and the use of repellent only partially reduced the probability of being bitten by ticks. These results represent the first attempt to quantify the risk of not immediately detecting a tick bite and provide rare quantitative data on the frequency of tick bites for orienteers according to walking distance and time spent in the forest. The results also provide information on the use of repellent, which will be very helpful for modeling risk assessment. The study also shows that prevention should be increased for orienteers in France.
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Stamm LV. Tick-borne diseases on the rise: an ounce of prevention is worth a pound of cure. Future Microbiol 2019; 14:833-835. [PMID: 31368786 DOI: 10.2217/fmb-2019-0148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Lola V Stamm
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 2107 McGavran Hall, S. Columbia St., Chapel Hill, NC 27599-7435, USA
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Rodriguez-Morales AJ, Bonilla-Aldana DK, Idarraga-Bedoya SE, Garcia-Bustos JJ, Cardona-Ospina JA, Faccini-Martínez ÁA. Epidemiology of zoonotic tick-borne diseases in Latin America: Are we just seeing the tip of the iceberg? F1000Res 2018; 7:1988. [PMID: 31489178 PMCID: PMC6707394 DOI: 10.12688/f1000research.17649.2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/07/2019] [Indexed: 12/12/2022] Open
Abstract
Ticks are responsible for transmission of multiple bacterial, parasitic and viral diseases. Tick-borne diseases (TBDs) occur particularly in tropical and also subtropical areas. The frequency of these TBDs has been increasing and extending to new territories in a significant way, partly since ticks' populations are highly favored by prevailing factors such as change in land use patterns, and climate change. Therefore, in order to obtain accurate estimates of mortality, premature mortality, and disability associated about TBDs, more molecular and epidemiological studies in different regions of the world, including Latin America, are required. In the case of this region, there is still a limited number of published studies. In addition, there is recently the emergence and discovering of pathogens not reported previously in this region but present in other areas of the world. In this article we discuss some studies and implications about TBDs in Latin America, most of them, zoonotic and with evolving taxonomical issues.
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Affiliation(s)
- Alfonso J. Rodriguez-Morales
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- School of Medicine, Universidad Franz Tamayo/UNIFRANZ, Cochabamba, Cochabamba, 4780, Bolivia
| | - D. Katterine Bonilla-Aldana
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Sanidad Animal, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
| | - Samuel E. Idarraga-Bedoya
- Grupo de Investigación Sanidad Animal, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
| | - Juan J. Garcia-Bustos
- Grupo de Investigación en Patología e Inmunología – Doctorado en Medicina Tropical, Universidad del Magdalena, Santa Marta, Magdalena, 470004, Colombia
- Grupo de Investigación en Ciencias Animales Macagual, Universidad de La Amazonia, Florencia, Caquetá, 180002, Colombia
| | - Jaime A. Cardona-Ospina
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Infection and Immunity Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Biomedicina, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
- Emerging Infectious Diseases and Tropical Medicine Research Group, Instituto para la Investigación en Ciencias Biomédicas – Sci-Help, Pereira, Risaralda, 660003, Colombia
| | - Álvaro A. Faccini-Martínez
- Postgraduate Program in Infectious Diseases, Health Science Center, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
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Rodriguez-Morales AJ, Bonilla-Aldana DK, Idarraga-Bedoya SE, Garcia-Bustos JJ, Cardona-Ospina JA, Faccini-Martínez ÁA. Epidemiology of zoonotic tick-borne diseases in Latin America: Are we just seeing the tip of the iceberg? F1000Res 2018; 7:1988. [PMID: 31489178 PMCID: PMC6707394 DOI: 10.12688/f1000research.17649.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/28/2018] [Indexed: 12/11/2022] Open
Abstract
Ticks are responsible for transmission of multiple bacterial, parasitic and viral diseases. Tick-borne diseases (TBDs) occur particularly in tropical and also subtropical areas. The frequency of these TBDs has been increasing and extending to new territories in a significant way, partly since ticks' populations are highly favored by prevailing factors such as change in land use patterns, and climate change. Therefore, in order to obtain accurate estimates of mortality, premature mortality, and disability associated about TBDs, more molecular and epidemiological studies in different regions of the world, including Latin America, are required. In the case of this region, there is still a limited number of published studies. In addition, there is recently the emergence and discovering of pathogens not reported previously in this region but present in other areas of the world. In this article we discuss some studies and implications about TBDs in Latin America, most of them, zoonotic and with evolving taxonomical issues.
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Affiliation(s)
- Alfonso J. Rodriguez-Morales
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- School of Medicine, Universidad Franz Tamayo/UNIFRANZ, Cochabamba, Cochabamba, 4780, Bolivia
| | - D. Katterine Bonilla-Aldana
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Sanidad Animal, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
| | - Samuel E. Idarraga-Bedoya
- Grupo de Investigación Sanidad Animal, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
| | - Juan J. Garcia-Bustos
- Grupo de Investigación en Patología e Inmunología – Doctorado en Medicina Tropical, Universidad del Magdalena, Santa Marta, Magdalena, 470004, Colombia
- Grupo de Investigación en Ciencias Animales Macagual, Universidad de La Amazonia, Florencia, Caquetá, 180002, Colombia
| | - Jaime A. Cardona-Ospina
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Infection and Immunity Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Biomedicina, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, 660004, Colombia
- Emerging Infectious Diseases and Tropical Medicine Research Group, Instituto para la Investigación en Ciencias Biomédicas – Sci-Help, Pereira, Risaralda, 660003, Colombia
| | - Álvaro A. Faccini-Martínez
- Postgraduate Program in Infectious Diseases, Health Science Center, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
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