人体正常菌群分布情况 Gastrointestinal tract Oral cavit Surface Epidermis Saliva S /Mucus oo Skin appendages b Gingiva Bacteroidetes Bacteriodetes Lamina Peyers Firmicutes Firmicutes propna patch Proteobacteria Respiratory tract Urogenital (vaginal) tract Upper Decreasing Lamina kk Virus propna oFt Bacteria Biofilm ucu Labia major Proteobacteria airways s( Lactobacillus spp)人体正常菌群分布情况 2