Bacteria regularly evolve antibiotic resistance, but little is known about this process at the population level. Here, a continuous culture of Escherichia coli facing increasing antibiotic levels is followed. Most isolates taken from this population are less antibiotic resistant than the population as a whole.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/bacterial-charity-work-leads-population-wide-resistance
[2] http://admin.indiaenvironmentportal.org.in/category/author/henry-h-lee
[3] http://admin.indiaenvironmentportal.org.in/category/author/michael-n-molla
[4] http://admin.indiaenvironmentportal.org.in/category/author/charles-r-cantor-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/micro-organisms
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drugs
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research