Credit: San Diego University/ Gizmag
http://www.gizmag.com/mucus-new-human-immune-system/27658/ / protective barrier underlying tissues moist trap traps bacteria foreign organisms researchers at San Diego State University SDSU discovered surface site independent human immune system infectious agents tissue lines inner surfaces body outer environment mouth nose sinuses throat lungs gastrointestinal tract protection passive research team biology post-doc Jeremy Barr immune system surface mucus layer bacteria-infecting bacteria bacterium virus viruses bacteriophage actively attack kill infectious harmless bacteria multiply adheres immunity invading bacteria surface layer bond sugar molecules E. coli bacteria attacked killed powerful anti-microbial anti microbial barrier protects animals infection disease hypothesis cells coated coated cells varieties bacteriophage collected defend infection killing infectious intruders comfortable living conditions food hosts replication proposes new immune system demonstrates symbiotic relationship phage animals /
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