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home:pathogenesis:successive_infection [09.03.2012] – [Evidence from clinical and laboratory-based studies] paulalberthome:pathogenesis:successive_infection [09.09.2012] – [Pea soup] paulalbert
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 Using high throughput sequencing, one research team found that of bacteria present on the hands of 51 undergraduate students leaving an exam room, there were 332,000 genetically distinct bacteria belonging to 4,742 different species. Each student carried on average 3,200 bacteria from 150 species on their hands. Only five species were found on all the students’ hands, while any two hands – even belonging to the same person – had only 13% of their bacterial species in common.(({{pubmed>long:19004758}})) According to the study's authors, each student’s bacterial “fingerprint” was totally unique.  Using high throughput sequencing, one research team found that of bacteria present on the hands of 51 undergraduate students leaving an exam room, there were 332,000 genetically distinct bacteria belonging to 4,742 different species. Each student carried on average 3,200 bacteria from 150 species on their hands. Only five species were found on all the students’ hands, while any two hands – even belonging to the same person – had only 13% of their bacterial species in common.(({{pubmed>long:19004758}})) According to the study's authors, each student’s bacterial “fingerprint” was totally unique. 
  
-However, variability in disease has more to do with how bacteria interact through processes like horizontal gene transfer than merely the sheer number of species present. Horizontal gene transfer is the process in which a bacterium inserts genetic material, usually circular strands of DNA called plasmids, into the genomes of other pathogens.+However, variability in disease has more to do with how bacteria interact through processes like horizontal gene transfer than merely the sheer number of species present. Horizontal gene transfer is the process by which a bacterium inserts genetic material, usually circular strands of DNA called plasmids, into the genomes of other pathogens.
  
 Given the frequency with which horizontal gene transfer occurs and the number of plasmids a given bacteria can contain – some bacteria have more than 20 plasmids – it is no surprise that the human microbiota is so diverse.  Given the frequency with which horizontal gene transfer occurs and the number of plasmids a given bacteria can contain – some bacteria have more than 20 plasmids – it is no surprise that the human microbiota is so diverse. 
home/pathogenesis/successive_infection.txt · Last modified: 09.14.2022 by 127.0.0.1
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