africanum is highly variable in different regions of Africa (3% in Cameroon 38 and 20% in Ghana) 43 with a decreasing trend in transmission over the last three decades. 44 Research is needed to determine the mechanism(s) underlying the putative decreasing trend of M. africanum and the increasing selection and dissemination of the Cameroon sublineage in certain parts of Africa.
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Genetic characterization of <i>Mycobacterium tuberculosis</i> complex isolates circulating in Abuja, Nigeria.
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