“…Other studies imply that these four genera are all oral opportunistic pathogens and can be linked to inflammatory reactions and cancer development [ 16 , 39 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ]. Notably, a significant increase of Prevotella and Actinomyces has been previously reported in vaginal or cervical exudates from women with cervical dysplasia or cervical cancer [ 10 , 58 , 59 ]. This finding suggests the potential for the transfer of these opportunistic pathogens between the oral and vaginal tracts.…”