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Tweyongyere R, Nkamwesiga J, Etiang P, Mugezi I, Wamala H, Wasswa AT, Kamusiime M, Ainebyoona S, Abizera H, Mwiine FN, Muhanguzi D. Seroprevalence of contagious bovine pleuropneumonia (CBPP) in cattle from Karamoja region, North-eastern Uganda. BMC Vet Res 2024; 20:97. [PMID: 38461244 PMCID: PMC10924401 DOI: 10.1186/s12917-024-03938-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 02/14/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Contagious bovine pleuropneumonia [CBPP] is a transboundary animal disease of cattle caused by Mycoplasma mycoides subsp. mycoides [Mmm]. CBPP causes severe economic losses to livestock producers in sub-Saharan Africa mainly due to high mortality, morbidity, reduction in productivity as well as livestock trade restrictions. This study aimed at determining seroprevalence of Mmm in cattle from Karamoja region, north-eastern Uganda; data that are required to design and implement risk based CBPP control program. METHODS We randomly collected blood samples from 2,300 cattle spread across Karamoja region. Serum was extracted and screened for antibodies against Mycoplasma mycoides subsp. mycoides [Mmm] using the competitive enzyme linked immunosorbent assay [cELISA]. RESULTS A quarter [25.4%; 95% CI: 23.7-27.3] of the screened cattle [n = 2,300] were sero-positive for Mmm. Amudat and Kaabong districts recorded the lowest [12.3%] and highest [30.7%] Mmm seroprevalence respectively. Increasing age, overnight stay in cattle kraals and location [certain districts, villages, herds and sub counties] of the cattle herds, the factors that promote animal commingling, were the most significant risk factors of seroconversion with Mmm. CONCLUSION Results from this study indicated a higher seroprevalence of Mmm in Karamoja region cattle herds. This could be due to the increased frequency of CBPP outbreaks in recent years. To be effective, CBPP vaccination programs should target high risk herds along the international borders and other hotspot areas [e.g., parishes or sub counties] where cattle commingling is high.
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Affiliation(s)
- Robert Tweyongyere
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
| | - Joseph Nkamwesiga
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
| | - Patrick Etiang
- Faculty of Agriculture and Animal Sciences, Busitema University, P.O.Box 236, Tororo, Uganda
| | - Israel Mugezi
- Department of Animal Health, Ministry of Agriculture Animal Industry and Fisheries, P.O.Box 513, Entebbe, Uganda
- Department of Production, Trade and Tourism Planning, National Planning Authority, P.O.Box 21434, Kampala, Uganda
| | - Henry Wamala
- Mercy Corps Uganda, Clock Tower, P.O.Box 32021, Kampala, Uganda
| | - Auther Tamale Wasswa
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
- Mercy Corps Uganda, Clock Tower, P.O.Box 32021, Kampala, Uganda
| | | | - Solomon Ainebyoona
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
| | - Harriet Abizera
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
| | - Frank Norbert Mwiine
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda
| | - Dennis Muhanguzi
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, P.O.Box 7062, Kampala, Uganda.
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Wagner H, Heller M, Fawzy A, Schnee C, Nesseler A, Kaim U, Ewers C, Semmler T, Spergser J, Schultze T, Eisenberg T. Mycoplasma mycoides subspecies capri, an uncommon mastitis and respiratory pathogen isolated in a German flock of goats. Vet Microbiol 2024; 290:109996. [PMID: 38295490 DOI: 10.1016/j.vetmic.2024.109996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 12/27/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
Mycoplasma mycoides ssp. capri (Mmc) is one of the etiological microorganisms of contagious agalactia, which is among the diseases causing the highest economical losses in small ruminants. We report a disease outbreak in a German flock that led to significant suffering of goats characterized by mastitis, arthritis, pleuropneumonia and sudden deaths. Mmc was persistently isolated from many animals both from milk, and from a number of different swab and tissue samples. A number of closely related Mycoplasma spp. have to be taken into consideration to rule out important animal epizootics listed by European Animal Health Law and the World Organisation for Animal Health (WOAH). Some goats developed cross-reacting antibodies against Mycoplasma mycoides ssp. mycoides. Although Mmc is believed to be an uncommon microorganism in Germany, this study highlights that veterinarians should consider this pathogen in their work during herd health monitoring in Central Europe. Although eradication was not fully achieved, autogenous vaccination significantly seemed to improve animal health and welfare.
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Affiliation(s)
- Henrik Wagner
- Veterinary Clinic for Reproductive Medicine and Neonatology, Justus-Liebig-University Giessen, Giessen 35392, Germany
| | - Martin Heller
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute of Molecular Pathogenesis (IMP), Jena 07743, Germany
| | - Ahmad Fawzy
- Cairo University, Faculty of Veterinary Medicine, Department of Medicine and Infectious Diseases, Cairo, Egypt; Hessian State Laboratory (LHL), Schubertstr. 60, Giessen 35392, Germany
| | - Christiane Schnee
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute of Molecular Pathogenesis (IMP), Jena 07743, Germany
| | - Anne Nesseler
- Hessian State Laboratory (LHL), Schubertstr. 60, Giessen 35392, Germany
| | - Ute Kaim
- Hessian State Laboratory (LHL), Schubertstr. 60, Giessen 35392, Germany
| | - Christa Ewers
- Institute of Hygiene and Infectious Diseases of Animals, Justus Liebig University Giessen, Giessen 35392, Germany
| | - Torsten Semmler
- NG1 Microbial Genomics, Robert Koch Institute, Berlin, Germany
| | - Joachim Spergser
- Institute of Microbiology, University of Veterinary Medicine, Vienna 1210, Austria
| | - Tilman Schultze
- Hessian State Laboratory (LHL), Schubertstr. 60, Giessen 35392, Germany
| | - Tobias Eisenberg
- Hessian State Laboratory (LHL), Schubertstr. 60, Giessen 35392, Germany; Institute of Hygiene and Infectious Diseases of Animals, Justus Liebig University Giessen, Giessen 35392, Germany.
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Modise BM, Kgotlele T, Masoba KPO, Dipuo K, Keokilwe L, Marobela-Raborokgwe C. The experience of contagious bovine pleuropneumonia ring trials in Botswana. REV SCI TECH OIE 2019; 37:897-906. [PMID: 30964460 DOI: 10.20506/rst.37.3.2894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The Botswana National Veterinary Laboratory (BNVL) has conducted ring trials (proficiency testing) on an annual basis since 2010. Proficiency testing is carried out to evaluate the ability of veterinary laboratories to perform serological complement fixation tests (CFTs) and molecular polymerase chain reaction (PCR) tests for the diagnosis of contagious bovine pleuropneumonia (CBPP). In this paper, the authors discuss the experience gained and the lessons learned in coordinating these ring trials over a period of six years, from 2010 to 2015.The number of participating laboratories increased from five in 2010 to 11 in2015. Their performance also improved over this period. The proportion of unsatisfactory results decreased from 40% to 10% for serological testing, while questionable results decreased from 60% to 10%. The proportion of unsatisfactory results for the molecular test decreased from 33% to 0%. Systematic errors (i.e. technical errors or imperfect experimental design) were the principal causes of questionable and unsatisfactory results. An analysis of responses from customer satisfaction surveys conducted annually since 2013 provided valuable information that enabled BNVL to redesign the programme in 2014 and 2015 to improve the overall quality of the proficiency testing programme. Among the changes made were sending freeze-dried sera for CFTs and DNA for PCR instead of sera and liquid cultures.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Scacchia M, Tjipura-Zaire G, Lelli R, Sacchini F, Pini A. Contagious bovine pleuropneumonia: humoral and pathological events in cattle infected by endotracheal intubation or by exposure to infected animals. Vet Ital 2011; 47:407-413. [PMID: 22194224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Results of trials in which cattle were infected by endotracheal intubation of Mycoplasma mycoides var. mycoides small colony (MmmSC) cultures or by contact exposure to animals affected by contagious bovine pleuropneumonia (CBPP) are numerous. However, an analysis of the effects of the two different routes of infection on disease outcome is lacking. This study analyses the disease outcome in cattle infected by the two methodologies. Data originate from two controlled trials conducted in Namibia under field conditions. Intubation appears to be responsible for chronic evolution of the disease while in-contact infected animals develop more severe infection inducing mortality. Our results seem to suggest that the mode of infection may condition the disease outcome and should be taken into consideration in studies on the pathogenesis of CBPP.
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Affiliation(s)
- Massimo Scacchia
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy.
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Amanfu W. Contagious bovine pleuropneumonia (lung sickness) in Africa. Onderstepoort J Vet Res 2009; 76:13-17. [PMID: 19967923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Contagious bovine pleuropneumonia (CBPP) or lung sickness, is an insidious pneumonic disease of cattle caused by Mycoplasma mycoides subspecies mycoides small colony variant (MmmSC) and it is one of the major diseases affecting cattle in Africa. With the imminent eradication of rinderpest from Africa (Somali ecosystem) CBPP has become the disease of prime concern in terms of epizootics that affect cattle on the continent. The control and/or eradication of the disease have suffered from unsustained control actions due to lack of operational funds to support such actions and deterioration in the quality of veterinary services in many countries affected by the disease. Stamping out procedures which were adopted by Botswana to control the disease (1995-1997) cannot be carried out by many countries currently affected by CBPP due to the high financial cost, the widespread nature of disease, animal welfare considerations and the potential loss of a valuable genetic resource base. The current scenario of CBPP disease epidemiology in sub-Saharan Africa requires that proactive measures are taken to safeguard countries in southern Africa which are currently free from CBPP from being contaminated by the disease thus affecting the beef industry and people's livelihoods; and to progressively control the disease in endemic zones of Western and Central Africa. This presentation discusses the epidemiology of CBPP in Africa, diagnosis of the disease, regional strategies that could be deployed to prevent and control the spread of the disease on the continent and research thrusts on CBPP.
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Affiliation(s)
- W Amanfu
- FAO ECTAD Unit, Regional Animal Health Centre/Eastern Africa AU Offices, Museum Hill-Westlands Road, Nairobi, Kenya
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Huebschle OJB, Ayling RD, Godinho K, Lukhele O, Tjipura-Zaire G, Rowan TG, Nicholas RAJ. Danofloxacin (Advocin) reduces the spread of contagious bovine pleuropneumonia to healthy in-contact cattle. Res Vet Sci 2006; 81:304-9. [PMID: 16624356 DOI: 10.1016/j.rvsc.2006.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Revised: 02/10/2006] [Accepted: 02/21/2006] [Indexed: 10/24/2022]
Abstract
Contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides subsp. mycoides SC (MmmSC), is one of the most important diseases of cattle in Sub-Saharan Africa. The live T1/44 vaccine is normally used for its control but produces only transient protection and gives rise to adverse reactions. The present study evaluated the efficacy of danofloxacin (2.5% Advocintrade mark, Pfizer Ltd.) for the treatment of naturally infected cattle and in the prevention of CBPP transmission to in-contact cattle. Adult cattle, taken from a natural outbreak, were placed into two groups of 10 animals and kept on a research farm in paddocks 50m apart. One group was treated with 2.5mg/kg danofloxacin on days 0, 1 and 2; the other group were saline treated. On day 2, 10 CBPP-free, seronegative cattle were placed in contact with each of the two groups. All cattle were monitored for 3.5 months. No differences were seen in clinical improvement of the CBPP-affected cattle treated with danofloxacin compared with the untreated CBPP-affected cattle with approximately half of each group being withdrawn because of CBPP or showing CBPP lesions at post mortem examination. Clinical scores of the two groups were also similar. However cattle kept in contact with the danofloxacin-treated CBPP-affected animals showed significantly fewer lesions, less mortality and fewer animals were seropositive (P<0.02) and had reduced clinical scores (P<0.001) compared to cattle kept in contact with untreated CBPP-affected cattle. MmmSC was also isolated from fewer contact controls kept with the treated group. These findings could have important implications for the control of CBPP in Africa.
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Abstract
Contagious bovine pleuropneumonia (CBPP) caused by Mycoplasma mycoides subspecies mycoides small colony (M. mycoides) has been endemic in many parts of Africa for the greater part of this century. Because of an international vaccination campaign the disease was almost eliminated from the continent. With the deteriorating economic situation of many countries, vaccination programs have been allowed to slip; drought conditions have resulted in great movements of livestock and the disease has spread rapidly to the east and south. For Government Veterinary Departments, the implications of this resurgence of CBPP, are serious. The costs threaten to overwhelm completely under-funded government, services. Where cost-recovery measures are introduced, the charging for vaccines may damage rapport with communities and erode the credibility of the government services. Farmers may find the loss of cattle and the costs of vaccine severe burdens which threaten their livelihoods and social well-being (Zambia) and even, in extreme cases, their survival (Botswana). Controlling the disease today presents new possibilities which include increased cross-border collaboration (Malawi/Tanzania), increased emphasis on monitoring (N. Zambia) and the greater involvement of communities in disease control (W. Zambia).
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Affiliation(s)
- R S Windsor
- SACVS, St. Mary's Industrial Estate, Dumfries, Scotland
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Abstract
The prevalence, characteristics of the aetiological agent, clinical signs, pathological changes, pathogenesis, epizootiology, microbiological and serological diagnosis, prevention, and control of contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides subspecies mycoides SC.type, are reviewed. New aspects of the disease are discussed. A renewed interest in this disease is important because of outbreaks in Southern Europe since 1980. When, at the end of 1992, the national borders of the countries of the European Community are abolished, it is conceivable that the disease will be introduced by cattle imported into CBPP-free countries.
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Affiliation(s)
- E A ter Laak
- Central Veterinary Institute, Department of Bacteriology, Lelystad, The Netherlands
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DaMassa AJ, Brooks DL, Holmberg CA. Induction of mycoplasmosis in goat kids by oral inoculation with Mycoplasma mycoides subspecies mycoides. Am J Vet Res 1986; 47:2084-9. [PMID: 3532878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A one-time, orally administered dose of greater than or equal to 1 X 10(6) colony-forming units of Mycoplasma mycoides subspecies mycoides was sufficient to induce clinical mycoplasmosis (n = 37) terminating in fatal mycoplasmemia in 73% (37 of 51) of the clinically affected kids. The pathogen was isolated from the blood samples as early as 24 hours after oral inoculation; hot, swollen joints frequently were evident by 4 or 5 days after exposure. Pyrexia (to 42.3 C) was detected in about 95% (35 of 37) clinically affected kids, although about 5% (2 of 35) died peracutely without fever or other premonitory signs. At necropsy, the cardinal lesions were a fibrinopurulent polyarthritis and red, patchy to diffuse areas of consolidation in 1 or more lung lobes. At death, usually within 4 to 16 days after oral inoculation, the concentration of M mycoides subspecies mycoides in the blood was 1 X 10(6) to 1 X 10(7) colony-forming units/ml. Histologically, the kids had diffuse fluid leakage into pulmonary alveoli and to a lesser extent into small vessels of various other organs. Fibrinocellular thrombi of terminal occurrence were occasionally present in various organs. The meningeal, pleural, and peritoneal surfaces had vascular leakage and a minimal perivascular accumulation of leukocytes. The disease was contagious. Of 14 noninoculated control kids in close confinement with affected kids, 8 (57%) developed mycoplasmosis in 7 to 15 days and died of mycoplasmemia. The remaining 5 noninoculated kids remained healthy, as did noninoculated kids that were kept isolated from affected kids.
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Lloyd LC, Etheridge JR. Contagious bovine pleuropneumonia produced by aerosols artificially generated from cultures of Mycoplasma mycoides subsp. mycoides. Br Vet J 1983; 139:330-7. [PMID: 6349746 DOI: 10.1016/s0007-1935(17)30438-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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East NE, DaMassa AJ, Logan LL, Brooks DL, McGowan B. Milkborne outbreak of Mycoplasma mycoides subspecies mycoides infection in a commercial goat dairy. J Am Vet Med Assoc 1983; 182:1338-41. [PMID: 6348004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A commercial goat dairy comprised of about 300 lactating does suddenly began to have a problem with polyarthritis in the kids and clinical mastitis in the does. The problem began 3 to 4 weeks following the introduction of 27 lactating does from a herd with a history of mastitis caused by Mycoplasma mycoides subsp mycoides (Mmm). Over 2 kidding seasons (about 12 months), approximately 170 kids and 70 does died or were euthanatized. Affected kids were 2 to 8 weeks old, had multiple warm swollen joints, body temperature of 40.8 to 41.5 C, marked weight loss, and pneumonia. All were lame and some experienced so much discomfort that they were unable to get up. The predominant necropsy finding was severe fibrinopurulent polyarthritis, but fibrinous pleuritis, fibrinous pericarditis, interstitial pneumonia, and bronchopneumonia also were found in some kids. Culturing of affected joints and of bulk tank milk yielded large numbers of Mmm. The outbreak was terminated by feeding heat-treated colostrum (56 C for 1 hr) and pasteurized milk to kids. Milk from the does was cultured repeatedly; by this procedure, the does shedding Mmm in the milk were identified and culled.
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Abstract
A patient with chronic bronchitis and acute respiratory failure due to mycoplasma pneumonia received excess parenteral fluid and developed hyponatremia associated with generalized seizures. The low serum osmolarity and elevated urine osmolarity were consistent with SIADH. Treatment with erythromycin and water restriction resulted in the complete recovery of her acute respiratory condition and return of the serum sodium and osmolarity values to normal.
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Harbi MS, Salih MM. Artificial reproduction of arthritis in calves by intubation of a virulent strain of Mycoplasma mycoides subsp mycoides. Vet Rec 1979; 104:194. [PMID: 377780 DOI: 10.1136/vr.104.9.194-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Buttery SH, Lloyd LC, Titchen DA. Acute respiratory, circulatory and pathological changes in the calf after intravenous injections of the galactan from Mycoplasma mycoides subsp. mycoides. J Med Microbiol 1976; 9:379-91. [PMID: 794475 DOI: 10.1099/00222615-9-4-379] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Twenty of 28 calves, 10-12 weeks of age when given intravenous injections of the galactan from Mycoplasma mycoides subsp. mycoides, showed transient apnoea, increased pulmonary arterial and decreased systemic arterial blood pressures, and increased packed-cell volume. Necropsy revealed haemorrhages associated with alveolar ducts and vessel walls, areas of pulmonary oedema, usually associated with the haemorrhages, dilated airways and, in some, capillary thrombosis. Animals that had shown changes in blood pressure and respiration in response to a dose of galactan did not react to a second dose an hour later. One goat tested died, four lambs were mildly affected and a cat and several rats and guinea-pigs did not respond. It is suggested that the galactan released biogenic amines that produced the effects listed. Immunological mechanisms were discounted on the grounds that only a small amount of antigenic material was injected at the time the reaction occurred, and neither serological nor skin tests produced any evidence of prior sensitisation to the galactan or a similar substance. A relationship between reactivity to the galactan and susceptibility to the natural disease has been suggested. This, together with the pulmonary oedema found in galactan-treated calves and in natural lesions of contagious bovine pleuropneumonia (CBPP), and the possibility that contraction of blood vessels could be an initiating cause of thrombosis indicates the role that galactan may play in the pathogenesis of CBPP.
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Lloyd LC, Piercy DW, Bingley JB. Changes in fibrinogen levels, platelet counts, clotting times and fibrinolytic activity in relation to thrombosis in contagious bovine pleuropneumonia. J Comp Pathol 1975; 85:583-95. [PMID: 1102571 DOI: 10.1016/0021-9975(75)90125-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Piercy DW, Bingley JB. Afebrile augmentation of fibrinogen and caeruloplasmin synthesis, and neutrocytosis induced by Mycoplasma mycoides var. Mycoides in the rabbit. J Comp Pathol 1975; 85:213-22. [PMID: 1095615 DOI: 10.1016/0021-9975(75)90062-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Kakoma I, Masiga WN, Windsor RS. Detection of immunoconglutinin in cattle with contagious bovine pleuropneumonia: evidence of auto-immunity. Res Vet Sci 1973; 15:101-5. [PMID: 4591583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Cottew GS, Etheridge JR. Isolation and recognition of Mycoplasma mycoides var. mycoides from pathological material using commercially available media. Bull Epizoot Dis Afr 1972; 20:79-84. [PMID: 4572580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Uskavitch R. Contagious bovine pleuropneumonia and Mycoplasma mycoides var. mycoides. Bull Epizoot Dis Afr 1972; 20:103-6. [PMID: 4572575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Kramer P. [Morphological differentiation of some strains of Mycoplasma gallisepticum against different mycoplasma species on solid medium]. Zentralbl Bakteriol Orig A 1972; 219:370-7. [PMID: 4145213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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GOURLAY RN, PALMER RF. THE ANTIGENICITY OF MYCOPLASMA MYCOIDES. 3. ISOLATION OF PRECIPITATING ANTIGENS FROM URINE. Res Vet Sci 1965; 6:255-62. [PMID: 14342647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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GOURLAY RN. ANTIGENICITY OF MYCOPLASMA MYCOIDES. II. FURTHER STUDIES ON THE PRECIPITATING ANTIGENS IN THE BODY FLUIDS FROM CASES OF CONTAGIOUS BOVINE PLEUROPNEUMONIA. Res Vet Sci 1965; 6:1-8. [PMID: 14281664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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ROSS JG. Mycoplasma mycoides var. mycoides in mice. A comparison of lesion and serological response in five inbred lines. J Comp Pathol 1962; 72:332-6. [PMID: 14494187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
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ROSS JG. Mycoplasma mycoides var. mycoides in mice. Course of the lesion, and the primary and secondary serological response in an inbred line of mice. J Comp Pathol 1962; 72:1-10. [PMID: 14494188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
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RODWELL AW, ABBOT A. The function of glycerol, cholesterol and long-chain fatty acids in the nutrition of Mycoplasma mycoides. J Gen Microbiol 1961; 25:201-14. [PMID: 13742641 DOI: 10.1099/00221287-25-2-201] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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ORUE J, MEMERY G, THIERY G. [Bovine peripneumonia. Lymphotropism of Mycoplasma mycoides. Effects on the pathogenesis and immunogenesis]. Rev Elev Med Vet Pays Trop 1961; 14:43-51. [PMID: 13731346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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ORUE J, MEMERY G, THIERY G. [Bovine peripneumonia. Lymphotropism of Mycoplasma mycoides. I. Histopathological and physiological data]. Rev Elev Med Vet Pays Trop 1961; 14:23-42. [PMID: 13731347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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ORUE J, MEMERY G, THIERY G. [Lymphotrophism and migration of Mycoplasma mycoides, agent of contagious bovine peripneumonia, in the peripheral lymphatic system]. C R Hebd Seances Acad Sci 1960; 250:4070-2. [PMID: 14429167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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PROVOST A. [Antigenic relation between vaccinia virus and Mycoplasma mycoides, agent of bovine peripneumonia]. C R Hebd Seances Acad Sci 1958; 246:1323-6. [PMID: 13537387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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