*3.2. HPV 16 Sub-Lineages in the Control Cohort*

Of the 134 control samples, most samples were classified (76.1%) as A1, followed by A2, identified in 23/134 (17.2%) of samples. D1 sub-lineage was identified in 4/134 samples (3.0%), and C1 and B1 were identified in two cases each (1.5%). B2 was present in 1/134 (0.7%). Table 2 describes the number of cases identified for each sub-lineage, and Figure 1 contains the phylogenetic tree obtained from the control cohort.
