Ja neznam odgovore na tvoja pitanja al me zainteresiralo pa sam isla pokusat nesto naucit. Ono sto mi je interesantno al tebi nije od pomoci posto ces, zbog prvotnog carskog, rodit u bolnici, su dvije studije na koje sam naletila, s deset godina razlike, i obje vele da je najpametnije rodit dijete doma ako hoces da ima najbolju mogucu bakterijsku floru. Al ak nemres, najbolje sto mozes napraviti je rooming in i koza-na-kozu plus iskljucivo dojenje

Factors Influencing the Composition of the Intestinal Microbiota in Early Infancy (2006)

OBJECTIVE. The aim of this study was to examine the contribution of a broad range of external influences to the gut microbiotic composition in early infancy.

METHODS. Fecal samples from 1032 infants at 1 month of age, who were recruited from the KOALA Birth Cohort Study in the Netherlands, were subjected to quantitative real-time polymerase chain reaction assays for the enumeration of bifidobacteria, Escherichia coli, Clostridium difficile, Bacteroides fragilis group, lactobacilli, and total bacterial counts. Information on potential determinants of the gut microbiotic composition was collected with repeated questionnaires. The associations between these factors and the selected gut bacteria were analyzed with univariate and multivariate analyses.

RESULTS. Infants born through cesarean section had lower numbers of bifidobacteria and Bacteroides, whereas they were more often colonized with C difficile, compared with vaginally born infants. Exclusively formula-fed infants were more often colonized with E coli, C difficile, Bacteroides, and lactobacilli, compared with breastfed infants. Hospitalization and prematurity were associated with higher prevalence and counts of C difficile. Antibiotic use by the infant was associated with decreased numbers of bifidobacteria and Bacteroides. Infants with older siblings had slightly higher numbers of bifidobacteria, compared with infants without siblings.

CONCLUSIONS. The most important determinants of the gut microbiotic composition in infants were the mode of delivery, type of infant feeding, gestational age, infant hospitalization, and antibiotic use by the infant. Term infants who were born vaginally at home and were breastfed exclusively seemed to have the most "beneficial" gut microbiota (highest numbers of bifidobacteria and lowest numbers of C difficile and E coli).
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Nosocomial acquisition of Escherichia coli by infants delivered in hospitals (1996)

Abstract

The delivery of infants in hospitals is desirable for obstetric reasons, but exposes the neonates to the microbiological hazards of a maternity unit. When neonates are born and cared for in hospital, the Escherichia coli strains that colonize the intestine tend to be acquired from the environment or from other babies, and are potentially pathogenic. The colonization of the infant with maternal flora should be promoted by strict rooming-in of mother and baby, or by delivery at home.
Al nisam bas od pomoci :/