The complete WGS data generated in this study will be submitted to the French Centralized Data Center of the France Medicine Genomic Plan that is under construction. A synthetic data set has been generated that allows the replication of our principal results but without a full disclosure of individual level sequencing data. This data set is currently available on our website http://lysine.univ-brest.fr/%7Eaherzig/BloodSaliva/; read counts and relative abundances for the microbiome profiling analyses are similarly available at the same location.