Other piRNAs were exclusively DE to the different leprosy poles: eight DE piRNAs (piR-hsa-23327, piR-hsa-23655, piR-hsa-2153, piR-hsa-12790, piR-hsa-31280, piR-hsa-28394, piR-hsa-27283, piR-hsa-23289) were found only in TT and three DE piRNAs (piR-hsa-23919, piR-hsa-26131, piR-hsa-15215) were found only in LL leprosy (Pinto et al., 2020). Here, PIR is linked to leprosy.