[Quantitative study of the faecal flora in adult and baby artifically fed from birth (author's transl)].

The faecal flora of 33 adults and 14 babies (artificially fed from birth) were determined. The faecal flora were most different. The primary anaerobic flora (prevalent Bacteroïdes and Bifidobacterium) in adults was 99 p. cent from total flora; it was in babies (prevalent Bifidobacterium and Bacteroïdes) 50 at 60 p. cent from total flora. The primary aerobic flora (E. coli and Enterococcus) was 10 to 20 times more numerous in babies than in adults. Therefore the secondary flora was very distinct. By babies we are noting the great diversity of Enterobacteriaceae species, the great frequency (57 p. cent of Pseudomonas aeruginosa (9 p. cent in adult), the important occurrence (21 p. cent) of aeromonas (0 in adults), the constancy of staphylococci (51 p. cent in adults), but the rarity of bacilli, yeast and fungi. The faecal flora of adults was specific and stable.