“…We analyzed 4,824 healthy human adult gut metagenomes and 215 children, listed on Table S7 along with their NCBI accession numbers and relevant metadata. These metagenomic studies comprised isolates from Australia (PRJEB6092), Austria 127 , Bangladesh 128 , Brazil 129 , Canada 130 , China 131,132 , Denmark 133 , England 134 , Ethiopia 76 , Fiji 15 , Finland 135 , Ghana 68 , India 136 , Israel 137 , Italy 77,138 , Japan 79 , Korea 139 , Madagascar 76 , Mongolia 76,140 , Netherlands 141 , Peru 142 , Spain 143 , Sweden 144,145 , Tanzania 68,77 , Thailand 2 and the USA 2,83,142,146,147 . We also analyzed 1,283 gut metagenomes from infant-mother pairs from Italy 138 , Finland 135 , Sweden 144 and the USA 146,148 , listed on Table S1F.…”