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Phylogenetic relationships of the 16S rRNA genes of rickettsiae detected in ticks in Zambia. Phylogenetic analysis was based on 795 bp of the 16S rRNA gene. Numbers at branch nodes indicate bootstrap values ≥50%. The reference sequences included in the analyses are shown by their GenBank accession number, species, and country of origin. The Rickettsiae characterized in the present study are in red text.
