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Mycoplasma mycoides  subsp.  mycoides  ( Mmm ) is the aetiological agent of contagious bovine pleuropneumonia (CBPP). The aim of the present study was to identify the profiles of the  Mmm  strains isolated in Niger using the ‘Multilocus Sequence Analysis’ (MLSA) typing technique based on polymorphism analysis of housekeeping and non‐coding genes. The investigation was conducted on samples (n=22) comprising of lung tissues, lymph node and pleural fluids. Following classical PCR,  Mmm  positive amplicons (n=6) were identified. These positive amplicons were then amplified using eight loci of the PG1 reference strain (LocPG1‐0001, Loc‐PG1‐0103, Loc‐PG1‐0287, Loc‐PG1‐0431, Loc‐PG1‐0489, Loc‐PG1‐0523, Loc‐PG1‐0710 and Loc‐PG1‐0827). Sequencing followed by the determination of the profile of each strain by the combination of the allele numbers revealed three different MLSA profiles namely; A11, E01 and A15. The profiles A11 and E01 were previously identified. The novel profile identified in this study was named profile A15. The difference was detected while comparing sequences of non‐coding loci. This novel profile was named ‘A15’ according to the similarities with African reference strain profile ‘A00’ at the seven loci level (loc‐0103, loc‐0287, loc‐0431, loc‐0489, loc‐0523, loc‐0710 and loc‐0827). For CBPP control measures, identification and molecular characterization of  Mmm  strains is very important. Thus, the use of MLSA technique is relevant to identify profiles of  Mmm  circulating in Niger. Other countries where CBPP is still endemic are encouraged to use a MLSA scheme to address this issue and, most importantly, to rapidly trace back the origin of outbreaks, which will help reduce the transmission and spread of the disease. In addition, mapping the profiles of strains circulating in each of the countries of the sub‐region is necessary for effective control of CBPP.

A novel MLSA allelic profile ‘A15’ of Mycoplasma mycoides subsp mycoides in Niger