Eligibility Criteria
Original studies that investigated the vaginal microbiome during human
pregnancy, were written in English, and published within the past 10
years were included. Only studies with pregnant women as study
participants and reported microbiome taxonomy were included. Review
papers, editorials, commentaries, and methodological papers including
procedure/protocols were excluded. Research studies that used a targeted
approach (i.e.: only on specific microbial taxa, such as Lactobacillus
species, were analyzed via microbe specific PCR), were also excluded.