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Contagious bovine pleuropneumonia (CBPP) caused by vaccine strain T1/44 of Mycoplasma mycoides subsp. mycoides SC. 2004

Rosa-Stella Mbulu, and Georgina Tjipura-Zaire, and Rosella Lelli, and Joachim Frey, and Paola Pilo, and Edy M Vilei, and Felix Mettler, and Robin A J Nicholas, and Otto J B Huebschle
Central Veterinary Laboratory, Windhoek, Namibia.

A study was carried out on four adult cattle to assess the pathogenicity of Mycoplasma mycoides subsp. mycoides SC strain T1/44, currently used as a vaccine for the control of contagious bovine pleuropneumonia (CBPP) in Namibia. Post mortem examination 9 weeks after endobronchial inoculation of the vaccine strain to three of the four animals revealed unilateral pleuropneumonic lesions, pleuritis and well-developed sequesters in two of the three inoculated animals and several small sequesters surrounded by pleuropneumonic lesions in the diaphragmatic and apical lobes in one animal. The fourth animal, which was not directly inoculated but was in close contact with the inoculated animals, revealed only an adhesion area of the lung to the ribcage. Serological examination carried out using the complement fixation test (CFT) detected positive titres in all three intubated animals and the indirect CBPP-LppQ-ELISA was positive for two of the three inoculated animals. The contact animal showed no seroconversion. M. mycoides subsp. mycoides SC was isolated from the sequesters of two of the inoculated animals. Isolation of mycoplasmas was not possible from the third inoculated animal due to heavy contamination of the samples by other bacteria, but the presence of M. mycoides subsp. mycoides SC could be evidenced by PCR from clinical samples. The identity of the T1/44 vaccine strain isolated from the sequesters of two animals was confirmed by T1/44-specific PCR analysis and by IS1296 typing using Southern blot. These results clearly show that inoculation of T1/44 vaccine via the endobronchial route can lead to CBPP.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D009176 Mycoplasma mycoides The etiological agent of contagious pleuropneumonia (PLEUROPNEUMONIA, CONTAGIOUS) of cattle and goats.
D009276 Namibia A republic in southern Africa, south of ANGOLA and west of BOTSWANA. Its capital is Windhoek. Republic of Namibia,South West Africa,Southwest Africa
D011002 Pleuropneumonia, Contagious A pleuropneumonia of cattle and goats caused by species of MYCOPLASMA. Contagious Pleuropneumonia,Contagious Pleuropneumonias,Pleuropneumonias, Contagious
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002418 Cattle Diseases Diseases of domestic cattle of the genus Bos. It includes diseases of cows, yaks, and zebus. Bovine Diseases,Bovine Disease,Cattle Disease,Disease, Bovine,Disease, Cattle,Diseases, Bovine,Diseases, Cattle
D003168 Complement Fixation Tests Serologic tests based on inactivation of complement by the antigen-antibody complex (stage 1). Binding of free complement can be visualized by addition of a second antigen-antibody system such as red cells and appropriate red cell antibody (hemolysin) requiring complement for its completion (stage 2). Failure of the red cells to lyse indicates that a specific antigen-antibody reaction has taken place in stage 1. If red cells lyse, free complement is present indicating no antigen-antibody reaction occurred in stage 1. Complement Absorption Test, Conglutinating,Conglutination Reaction,Conglutinating Complement Absorption Test,Complement Fixation Test,Conglutination Reactions,Fixation Test, Complement,Fixation Tests, Complement,Reaction, Conglutination,Reactions, Conglutination,Test, Complement Fixation,Tests, Complement Fixation
D004251 DNA Transposable Elements Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom. DNA Insertion Elements,DNA Transposons,IS Elements,Insertion Sequence Elements,Tn Elements,Transposable Elements,Elements, Insertion Sequence,Sequence Elements, Insertion,DNA Insertion Element,DNA Transposable Element,DNA Transposon,Element, DNA Insertion,Element, DNA Transposable,Element, IS,Element, Insertion Sequence,Element, Tn,Element, Transposable,Elements, DNA Insertion,Elements, DNA Transposable,Elements, IS,Elements, Tn,Elements, Transposable,IS Element,Insertion Element, DNA,Insertion Elements, DNA,Insertion Sequence Element,Sequence Element, Insertion,Tn Element,Transposable Element,Transposable Element, DNA,Transposable Elements, DNA,Transposon, DNA,Transposons, DNA
D004269 DNA, Bacterial Deoxyribonucleic acid that makes up the genetic material of bacteria. Bacterial DNA
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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