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Olivieri MAC, Cuerda MX, Moyano RD, Gravisaco MJ, Pinedo MFA, Delgado FO, Calamante G, Mundo S, de la Paz Santangelo M, Romano MI, Alonso MN, Del Medico Zajac MP. Superior protection against paratuberculosis by a heterologous prime-boost immunization in a murine model. Vaccine 2024:S0264-410X(24)00696-0. [PMID: 38880691 DOI: 10.1016/j.vaccine.2024.06.022] [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: 07/14/2023] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/18/2024]
Abstract
Vaccination is the best strategy to control Paratuberculosis (PTB), which is a significant disease in cattle and sheep. Previously we showed the humoral and cellular immune response induced by a novel vaccine candidate against PTB based on the Argentinian Mycobacterium avium subspecies paratuberculosis (Map) 6611 strain. To improve 6611 immunogenicity and efficacy, we evaluated this vaccine candidate in mice with two different adjuvants and a heterologous boost with a recombinant modified vaccinia Ankara virus (MVA) expressing the antigen 85A (MVA85A). We observed that boosting with MVA85A did not improve total IgG or specific isotypes in serum induced by one or two doses of 6611 formulated with incomplete Freund's adjuvant (IFA). However, when 6611 was formulated with ISA201 adjuvant, MVA85A boost enhanced the production of IFNγ, Th1/Th17 cytokines (IL-2, TNF, IL-17A) and IL-6, IL-4 and IL-10. Also, this group showed the highest levels of IgG2b and IgG3 isotypes, both important for better protection against Map infection in the murine model. Finally, the heterologous scheme elicited the highest levels of protection after Map challenge (lowest CFU count and liver lesion score). In conclusion, our results encourage further evaluation of 6611 strain + ISA201 prime and MVA85A boost in bovines.
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Affiliation(s)
| | - María Ximena Cuerda
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - Roberto Damián Moyano
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - María José Gravisaco
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - María Fiorella Alvarado Pinedo
- Centro de Diagnóstico e Investigaciones Veterinarias (CEDIVE) de la Facultad de Ciencias Veterinarias - Universidad de La Plata, Chascomús, Buenos Aires 7130, Argentina
| | - Fernando Oscar Delgado
- Instituto de Patobiologia Veterinaria (IPV), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - Gabriela Calamante
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - Silvia Mundo
- Cátedra de Inmunología de la Facultad de Ciencias Veterinarias - Universidad de Buenos Aires, Ciudad de Buenos Aires 1427, Argentina
| | - María de la Paz Santangelo
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - María Isabel Romano
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
| | - María Natalia Alonso
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina.
| | - María Paula Del Medico Zajac
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Hurlingham, Buenos Aires 1686, Argentina
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Rasmussen P, Barkema HW, Osei PP, Taylor J, Shaw AP, Conrady B, Chaters G, Muñoz V, Hall DC, Apenteng OO, Rushton J, Torgerson PR. Global losses due to dairy cattle diseases: A comorbidity-adjusted economic analysis. J Dairy Sci 2024:S0022-0302(24)00821-X. [PMID: 38788837 DOI: 10.3168/jds.2023-24626] [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: 12/28/2023] [Accepted: 04/01/2024] [Indexed: 05/26/2024]
Abstract
An economic simulation was carried out over 183 milk-producing countries to estimate the global economic impacts of 12 dairy cattle diseases and health conditions: mastitis (subclinical and clinical), lameness, paratuberculosis (Johne's disease), displaced abomasum, dystocia, metritis, milk fever, ovarian cysts, retained placenta, and ketosis (subclinical and clinical). Estimates of disease impacts on milk yield, fertility, and culling were collected from the literature, standardized, meta-analyzed using a variety of methods ranging from simple averaging to random-effects models, and adjusted for comorbidities to prevent overestimation. These comorbidity-adjusted disease impacts were then combined with a set of country-level lactational incidence and/or prevalence estimates, herd characteristics, and price estimates within a series of Monte Carlo simulations that estimated and valued the economic losses due to these diseases. It was estimated that total annual global losses are USD 65 billion (B). Subclinical ketosis, clinical mastitis, and subclinical mastitis were the costliest diseases modeled, resulting in mean annual global losses of approximately USD 18B, USD 13B, and USD 9B, respectively. Estimated global annual losses due to clinical ketosis, displaced abomasum, dystocia, lameness, metritis, milk fever, ovarian cysts, paratuberculosis, and retained placenta were estimated to be USD 0.2B, 0.6B, 0.6B, 6B, 5B, 0.6B, 4B, 4B, and 3B, respectively. Without adjustment for comorbidities, when statistical associations between diseases were disregarded, mean aggregate global losses would have been overestimated by 45%. Although annual losses were greatest in India (USD 12B), the USA (USD 8B), and China (USD 5B), depending on the measure of losses used (losses as a percent of GDP, losses per capita, losses as a percent of gross milk revenue), the relative economic burden of these dairy cattle diseases across countries varied markedly.
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Affiliation(s)
- Philip Rasmussen
- Section of Animal Welfare and Disease Control, Department Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark; Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland; Global Burden of Animal Diseases (GBADs) - https://animalhealthmetrics.org.
| | - Herman W Barkema
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Prince P Osei
- School of Mathematics and Statistics, Carlton University, Ottawa, Canada
| | - James Taylor
- Agri-food and Biosciences Institute (AFBI), Belfast, UK
| | - Alexandra P Shaw
- Department of Livestock and One Health, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, UK; Infection Medicine, Biomedical Sciences, Edinburgh Medical School, University of Edinburgh, Edinburgh, UK
| | - Beate Conrady
- Section of Animal Welfare and Disease Control, Department Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gemma Chaters
- Global Burden of Animal Diseases (GBADs) - https://animalhealthmetrics.org; Department of Livestock and One Health, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Violeta Muñoz
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland; Global Burden of Animal Diseases (GBADs) - https://animalhealthmetrics.org
| | - David C Hall
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ofosuhene O Apenteng
- Section of Animal Welfare and Disease Control, Department Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jonathan Rushton
- Global Burden of Animal Diseases (GBADs) - https://animalhealthmetrics.org; Department of Livestock and One Health, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Paul R Torgerson
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland; Global Burden of Animal Diseases (GBADs) - https://animalhealthmetrics.org
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Rasmussen P, Barkema HW, Beaulieu E, Mason S, Hall DC. Estimation of the value of Johne's disease (paratuberculosis) control to Canadian dairy producers. Prev Vet Med 2021; 189:105297. [PMID: 33677407 DOI: 10.1016/j.prevetmed.2021.105297] [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: 11/04/2020] [Revised: 01/12/2021] [Accepted: 02/13/2021] [Indexed: 10/22/2022]
Abstract
Johne's disease (JD), or paratuberculosis, is an infectious disorder primarily associated with cattle and sheep and resulting in significant economic losses for dairy producers. The dairy cattle herd-level prevalence in Canada has recently been estimated to be greater than 40%, but the willingness to pay for JD control practices such as testing-and-culling and vaccination among Canadian dairy producers is unknown. This study used confidential cost-of-production data from the Canadian Dairy Commission to develop a Canadian dairy production model incorporating feed, land, labor, and machinery. A second dataset from a nationally distributed questionnaire (closed in March 2020) was used to estimate individual dairy producer valuations of the reduced per-cow cost of milk production that would result from JD control. This is a novel application of compensating variation and equivalent variation (CV and EV), with dairy producers framed as consumers of production inputs and milk output as a proxy for utility. Assuming a within-herd prevalence of 12.5% and a 50% reduction of that prevalence over 10 years, it was estimated JD control has an annual value of CA$28 per cow for the average Canadian dairy producer. Within-herd prevalence, the effectiveness of control at reducing within-herd prevalence, and the time required to achieve that reduction were identified as important factors. With the same assumption of 12.5% within-herd prevalence but with 100% reductions in that prevalence, estimated values ranged from over CA$55 to over CA$90 per cow per year depending on the timeframe of the control program. When assuming a 10-year period required to achieve control, the estimated values exceeded CA$90 per cow per year in various scenarios for herds with higher within-herd prevalence (greater than 20%).
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Affiliation(s)
- Philip Rasmussen
- Department of Ecosystem and Public Health, University of Calgary, Calgary, AB, Canada
| | - Herman W Barkema
- Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
| | - Eugene Beaulieu
- Department of Economics, University of Calgary, Calgary, AB, Canada
| | - Steve Mason
- Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
| | - David C Hall
- Department of Ecosystem and Public Health, University of Calgary, Calgary, AB, Canada.
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