Gram-negative facultative anaerobic rods
Gram-negative facultative anaerobic rods
Gram-negative facultative anaerobic rods
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The normal human<br />
gastrointestinal flora<br />
• Acquisition and composition of the normal flora:<br />
- following birth infants quickly acquire Escherichia<br />
coli and streptococci which generate an <strong>anaerobic</strong><br />
environment<br />
- in breast-fed infants a bifidobacterium flora<br />
establishes itself<br />
- in formula fed infants and in older children on solid<br />
diet other anaerobes:<br />
bacteroides (30%!), clostridia, fusobactria, peptococci<br />
and additional enterobacteriaceae colonize the gut<br />
- additional microbes: candida species, protoozoa
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