Figure 2From: Differential effects of frozen storage on the molecular detection of bacterial taxa that inhabit the nasopharynx Bar graph showing proportion change in relative abundance of bacterial OTUs after frozen storage of NP swabs at -70°C analysed by 16S rRNA T-RFLP. The difference in relative abundance before and after frozen storage was expressed as a proportion of the relative abundance for direct analysis. Most of the 42 OTUs detected showed minimal (<0.5%) change and OTUs that had proportion change >0.5% are shown here.Back to article page