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Clemmons EA, Alfson KJ, Dutton JW. Transboundary Animal Diseases, an Overview of 17 Diseases with Potential for Global Spread and Serious Consequences. Animals (Basel) 2021; 11:2039. [PMID: 34359167 PMCID: PMC8300273 DOI: 10.3390/ani11072039] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022] Open
Abstract
Animals provide food and other critical resources to most of the global population. As such, diseases of animals can cause dire consequences, especially disease with high rates of morbidity or mortality. Transboundary animal diseases (TADs) are highly contagious or transmissible, epidemic diseases, with the potential to spread rapidly across the globe and the potential to cause substantial socioeconomic and public health consequences. Transboundary animal diseases can threaten the global food supply, reduce the availability of non-food animal products, or cause the loss of human productivity or life. Further, TADs result in socioeconomic consequences from costs of control or preventative measures, and from trade restrictions. A greater understanding of the transmission, spread, and pathogenesis of these diseases is required. Further work is also needed to improve the efficacy and cost of both diagnostics and vaccines. This review aims to give a broad overview of 17 TADs, providing researchers and veterinarians with a current, succinct resource of salient details regarding these significant diseases. For each disease, we provide a synopsis of the disease and its status, species and geographic areas affected, a summary of in vitro or in vivo research models, and when available, information regarding prevention or treatment.
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Affiliation(s)
- Elizabeth A. Clemmons
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA;
| | - Kendra J. Alfson
- Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA
| | - John W. Dutton
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA;
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Gelormini G, Gauthier D, Vilei EM, Crampe JP, Frey J, Ryser-Degiorgis MP. Infectious keratoconjunctivitis in wild Caprinae: merging field observations and molecular analyses sheds light on factors shaping outbreak dynamics. BMC Vet Res 2017; 13:67. [PMID: 28259139 PMCID: PMC5336646 DOI: 10.1186/s12917-017-0972-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 02/10/2017] [Indexed: 02/04/2023] Open
Abstract
Background Infectious keratoconjunctivitis (IKC) is an ocular infectious disease caused by Mycoplasma conjunctivae which affects small domestic and wild mountain ruminants. Domestic sheep maintain the pathogen but the detection of healthy carriers in wildlife has raised the question as to whether M. conjunctivae may also persist in the wild. Furthermore, the factors shaping the dynamics of IKC outbreaks in wildlife have remained largely unknown. The aims of this study were (1) to verify the etiological role of M. conjunctivae in IKC outbreaks recorded between 2002 and 2010 at four study sites in different regions of France (Pyrenees and Alps, samples from 159 Alpine ibex Capra ibex, Alpine chamois Rupicapra rupicapra and Pyrenean chamois Rupicapra pyrenaica); (2) to establish whether there existed any epidemiological links between the different regions through a cluster analysis of the detected strains (from 80 out of the 159 animals tested); (3) to explore selected pathogen, host and environmental factors potentially influencing the dynamics of IKC in wildlife, by joining results obtained by molecular analyses and by field observations (16,609 animal observations). All of the samples were tested for M. conjunctivae by qPCR, and cluster analysis was based on a highly variable part of the lppS gene. Results We documented infections with M. conjunctivae in epidemic and endemic situations, both in symptomatic and asymptomatic animals. The identified M. conjunctivae strains were site-specific and persisted in the local wild population for at least 6 years. In epidemic situations, peaks of cases and disease resurgence were associated with the emergence of new similar strains in a given area. Social interactions, seasonal movements and the landscape structure such as natural and anthropogenic barriers influenced the spatio-temporal spread of IKC. Adults were more affected than young animals and host susceptibility differed depending on the involved strain. Conclusion Our study indicates that IKC is a multifactorial disease and that M. conjunctivae can persist in wildlife populations. The disease course in individual animals and populations is influenced by both host and mycoplasma characteristics, and the disease spread within and among populations is shaped by host behavior and landscape structure. Electronic supplementary material The online version of this article (doi:10.1186/s12917-017-0972-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Giuseppina Gelormini
- Centre for Fish and Wildlife Health (FIWI), Vetsuisse Faculty, University of Bern, Bern, Switzerland.,Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Edy M Vilei
- Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Joachim Frey
- Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
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Nkando I, Perez-Casal J, Mwirigi M, Prysliak T, Townsend H, Berberov E, Kuria J, Mugambi J, Soi R, Liljander A, Jores J, Gerdts V, Potter A, Naessens J, Wesonga H. Recombinant Mycoplasma mycoides proteins elicit protective immune responses against contagious bovine pleuropneumonia. Vet Immunol Immunopathol 2016; 171:103-14. [DOI: 10.1016/j.vetimm.2016.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/12/2016] [Accepted: 02/15/2016] [Indexed: 01/30/2023]
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Perez-Casal J, Prysliak T, Maina T, Wang Y, Townsend H, Berverov E, Nkando I, Wesonga H, Liljander A, Jores J, Naessens J, Gerdts V, Potter A. Analysis of immune responses to recombinant proteins from strains of Mycoplasma mycoides subsp. mycoides, the causative agent of contagious bovine pleuropneumonia. Vet Immunol Immunopathol 2015; 168:103-10. [PMID: 26384697 DOI: 10.1016/j.vetimm.2015.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/07/2015] [Accepted: 08/28/2015] [Indexed: 10/23/2022]
Abstract
Current contagious bovine pleuropneumonia (CBPP) vaccines are based on live-attenuated strains of Mycoplasma mycoides subsp. mycoides (Mmm). These vaccines have shortcomings in terms of efficacy, duration of immunity and in some cases show severe side effects at the inoculation site; hence the need to develop new vaccines to combat the disease. Reverse vaccinology approaches were used and identified 66 candidate Mycoplasma proteins using available Mmm genome data. These proteins were ranked by their ability to be recognized by serum from CBPP-positive cattle and thereafter used to inoculate naïve cattle. We report here the inoculation of cattle with recombinant proteins and the subsequent humoral and T-cell-mediated immune responses to these proteins and conclude that a subset of these proteins are candidate molecules for recombinant protein-based subunit vaccines for CBPP control.
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Affiliation(s)
- Jose Perez-Casal
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada.
| | - Tracy Prysliak
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Teresa Maina
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Yejun Wang
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Hugh Townsend
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Emil Berverov
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Isabel Nkando
- Kenya Agricultural and Livestock Research Organisation (KALRO), Kaptagat Rd, Loresho, P.O. Box 57811, Nairobi, Kenya
| | - Hezron Wesonga
- Kenya Agricultural and Livestock Research Organisation (KALRO), Kaptagat Rd, Loresho, P.O. Box 57811, Nairobi, Kenya
| | - Anne Liljander
- International Livestock Research Institute (ILRI), P.O. Box 30709, Nairobi 00100, Kenya
| | - Joerg Jores
- International Livestock Research Institute (ILRI), P.O. Box 30709, Nairobi 00100, Kenya
| | - Jan Naessens
- International Livestock Research Institute (ILRI), P.O. Box 30709, Nairobi 00100, Kenya
| | - Volker Gerdts
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
| | - Andrew Potter
- Vaccine Infectious Disease Organization - International Vaccine Centre (VIDO-InterVac), 120 Veterinary Rd, Saskatoon, SK S7N 5E3, Canada
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Mulongo M, Frey J, Smith K, Schnier C, Wesonga H, Naessens J, McKeever D. Vaccination of cattle with the N terminus of LppQ of Mycoplasma mycoides subsp. mycoides results in type III immune complex disease upon experimental infection. Infect Immun 2015; 83:1992-2000. [PMID: 25733516 PMCID: PMC4399042 DOI: 10.1128/iai.00003-15] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/21/2015] [Indexed: 11/20/2022] Open
Abstract
Contagious bovine pleuropneumonia (CBPP) is a serious respiratory disease of cattle caused by Mycoplasma mycoides subsp. mycoides. Current vaccines against CBPP induce short-lived immunity and can cause severe postvaccine reactions. Previous studies have identified the N terminus of the transmembrane lipoprotein Q (LppQ-N') of M. mycoides subsp. mycoides as the major antigen and a possible virulence factor. We therefore immunized cattle with purified recombinant LppQ-N' formulated in Freund's adjuvant and challenged them with M. mycoides subsp. mycoides. Vaccinated animals showed a strong seroconversion to LppQ, but they exhibited significantly enhanced postchallenge glomerulonephritis compared to the placebo group (P = 0.021). Glomerulonephritis was characterized by features that suggested the development of antigen-antibody immune complexes. Clinical signs and gross pathological scores did not significantly differ between vaccinated and placebo groups. These findings reveal for the first time the pathogenesis of enhanced disease as a result of antibodies against LppQ during challenge and also argue against inclusion of LppQ-N' in a future subunit vaccine for CBPP.
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Affiliation(s)
- Musa Mulongo
- International Livestock Research Institute, Nairobi, Kenya Department of Pathology and Pathogen Biology, Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Joachim Frey
- Department of Veterinary Bacteriology, University of Berne, Berne, Switzerland
| | - Ken Smith
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Christian Schnier
- Moredun Research Institute, Penicuik, Midlothian, Scotland, United Kingdom
| | - Hezron Wesonga
- National Veterinary Research Center, Muguga, Kikuyu, Kenya
| | - Jan Naessens
- International Livestock Research Institute, Nairobi, Kenya
| | - Declan McKeever
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
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Schieck E, Liljander A, Hamsten C, Gicheru N, Scacchia M, Sacchini F, Heller M, Schnee C, Sterner-Kock A, Hlinak A, Naessens J, Poole J, Persson A, Jores J. High antibody titres against predicted Mycoplasma surface proteins do not prevent sequestration in infected lung tissue in the course of experimental contagious bovine pleuropneumonia. Vet Microbiol 2014; 172:285-93. [DOI: 10.1016/j.vetmic.2014.04.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 04/25/2014] [Accepted: 04/26/2014] [Indexed: 10/25/2022]
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Characterization of the in vitro core surface proteome of Mycoplasma mycoides subsp. mycoides, the causative agent of contagious bovine pleuropneumonia. Vet Microbiol 2013; 168:116-23. [PMID: 24332827 DOI: 10.1016/j.vetmic.2013.10.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 10/13/2013] [Accepted: 10/31/2013] [Indexed: 11/20/2022]
Abstract
Contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides subsp. mycoides (Mmm) is a severe cattle disease, present in many countries in sub-Saharan Africa. The development of improved diagnostic tests and vaccines for CBPP control remains a research priority. Polyacrylamide gel electrophoresis and mass spectrometry were used to characterize the Triton X-114 soluble proteome of nine Mmm strains isolated from Europe or Africa. Of a total of 250 proteins detected, 67 were present in all strains investigated. Of these, 44 were predicted to be lipoproteins or cytoplasmic membrane-associated proteins and are thus likely to be members of the core in vitro surface membrane-associated proteome of Mmm. Moreover, the presence of all identified proteins in other ruminant Mycoplasma pathogens were investigated. Two proteins of the core proteome were identified only in other cattle pathogens of the genus Mycoplasma pointing towards a role in host-pathogen interactions. The data generated will facilitate the identification and prioritization of candidate Mycoplasma antigens for improved control measures, as it is likely that surface-exposed membrane proteins will include those that are involved in host-pathogen interactions.
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Sacchini F, Luciani M, Salini R, Scacchia M, Pini A, Lelli R, Naessens J, Poole J, Jores J. Plasma levels of TNF-α, IFN-γ, IL-4 and IL-10 during a course of experimental contagious bovine pleuropneumonia. BMC Vet Res 2012; 8:44. [PMID: 22533922 PMCID: PMC3378467 DOI: 10.1186/1746-6148-8-44] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 04/25/2012] [Indexed: 11/11/2022] Open
Abstract
Background Contagious Bovine Pleuropneumonia (CBPP), caused by Mycoplasma mycoides subsp. mycoides, is widespread in sub-Saharan Africa. The current live vaccine T1/44 has limited efficacy and occasionally leads to severe side effects in the animals. A better understanding of the immune responses triggered by Mycoplasma mycoides subsp. mycoides and their role in disease progression will help to facilitate the design of a rational vaccine. Currently, knowledge of cytokines involved in immunity and immunopathology in CBPP is rather limited. The aim of this study was to characterize the in vivo plasma concentrations of the cytokines TNF-α, IFN-γ, IL-4, IL-10 and the overall role of CD4+ T cells in the development of cytokine levels during a primary infection. Plasma cytokine concentrations in two groups of cattle (CD4+ T cell-depleted and non-depleted cattle) experimentally infected with Mycoplasma mycoides subsp. mycoides were measured and their relationship to the clinical outcomes was investigated. Results Plasma cytokine concentrations varied between animals in each group. Depletion of CD4+ T cells did not induce significant changes in plasma levels of TNF-α, IL-4, and IL-10, suggesting a minor role of CD4+ T cells in regulation or production of the three cytokines during the time window of depletion (1-2 weeks post depletion). Unexpectedly, the IFN-γ concentrations were slightly, but statistically significantly higher in the depleted group (p < 0.05) between week three and four post infection. Three CD4+ T cell-depleted animals that experienced severe disease, had high levels of TNF-α and IFN-γ. Only one severely diseased non-depleted animal showed a high serum concentration of IL-4 post infection. Conclusions Comparison of most severely diseased animals, which had to be euthanized prior to the expected date, versus less severe diseased animals, irrespective of the depletion status, suggested that high TNF-α levels are correlated with more severe pathology in concomitance with high IFN-γ levels.
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Schubert E, Sachse K, Jores J, Heller M. Serological testing of cattle experimentally infected with Mycoplasma mycoides subsp. mycoides Small Colony using four different tests reveals a variety of seroconversion patterns. BMC Vet Res 2011; 7:72. [PMID: 22098816 PMCID: PMC3377920 DOI: 10.1186/1746-6148-7-72] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Accepted: 11/18/2011] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND To study the specific antibody response to infection with Mycoplasma mycoides subsp. mycoides Small Colony (MmmSC), the agent of Contagious Bovine Pleuropneumonia (CBPP), we examined three panels of sera collected during three experimental infection trials in African cattle. The methods used included an in-house complement fixation test (CFT), a commercially available CFT, a competitive antibody ELISA (cELISA) and the immunoblotting test (IBT). In addition, lung tissue samples were examined by culture. RESULTS A total of 89% (51/59) of all experimentally infected animals tested positive on at least one of the serological tests throughout the trial. The specific antibody titres to the MmmSC infection became positive first by CFT (6 to 9 days post infection [dpi]), followed by IBT (9 to 13 dpi) and cELISA (13 to 16 dpi). Individual animals were found to display remarkably distinct seroconversion patterns, which allowed their classification into i) early high responders, ii) late high responders, and iii) low responders. In accordance with other studies, none of the present serological tests was capable of detecting all CBPP infected animals. CONCLUSION Comparison of the assays' performance in terms of sensitivity and specificity raises serious questions as to their reliability for identification of infected individuals in the field. In view of these limitations, a combination of CFT and cELISA can markedly improve CBPP diagnosis at single-animal level.
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Affiliation(s)
- Evelyn Schubert
- National Reference Laboratory for CBPP, Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), Naumburger Str. 96a, 07743 Jena, Germany
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), Naumburger Str. 96a, 07743 Jena, Germany
| | - Konrad Sachse
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), Naumburger Str. 96a, 07743 Jena, Germany
| | - Jörg Jores
- International Livestock Research Institute (ILRI), Old Naivasha Road, P.O. Box 30709, 00100 Nairobi, Kenya
| | - Martin Heller
- National Reference Laboratory for CBPP, Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), Naumburger Str. 96a, 07743 Jena, Germany
- Institute of Bacterial Infections and Zoonoses, Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), Naumburger Str. 96a, 07743 Jena, Germany
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Nkando IG, Wesonga HO, Kuria JKN, McKeever D. Assessing the effectiveness of intubation as a challenge model in contagious bovine pleuropneumonia vaccine experiments. Trop Anim Health Prod 2010; 42:1743-7. [PMID: 20563883 DOI: 10.1007/s11250-010-9630-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2010] [Indexed: 11/26/2022]
Abstract
A study was carried out to assess the effectiveness of a bronchoscope in administering a pathogenic field strain of Mycoplasma mycoides subsp. mycoides (MmmSC) in cattle challenge experiments. Out of 16 animals inoculated using the bronchoscope, 10 (62.2%) showed clinical disease as evidenced by fever and 15 (93.8%) displayed typical lesions of CBPP from which MmmSC was isolated. Serum samples collected weekly were tested by Complement Fixation Test (CFT) and competitive enzyme-linked immunosorbent assay (c-ELISA). Antibodies to MmmSC were detected in 10 out of the 16 animals by the CFT and 11 out of the 16 animals by c-ELISA. The onset of clinical disease was as early as 2 days post-inoculation, and most of the animals developed clinical disease 2 to 3 weeks post-infection. These results clearly demonstrate that nasotracheal inoculation of pathogenic strain of MmmSC with the aid of a bronchoscope can lead to early onset of clinical disease; similar to previous studies but with higher numbers of animals showing clinical disease. This is in contrast with previous studies where early clinical disease was observed in as little as 15% of inoculated animals. This nasotracheal inoculation method using a bronchoscope can, therefore, be adopted for use in experimental challenge infections of cattle. This method is found to be a better replacement to the contact transmission method whose drawback includes extra cost of donor animals and unpredictable rate and timing of transmission from intubated to challenge animals.
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Affiliation(s)
- Isabel Gacheri Nkando
- Veterinary Research Centre, Kenya Agricultural Research Institute, P.O. Box 32-00902, Kikuyu, Kenya.
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