Bacteria Mutational Changes
Country: United States
Date: Winter 2009 - 2010
Is it possible for bacteria that is resistant to
antibiotics to lose resistance? If so, about how long does it take?
Yes it can. The wildtype (which is antibiotic sensitive) will
eventually become the dominant type if given enough time. Experiments
were done about 50 years ago which showed that bacterial growth in a
chemostat could result in a loss of bacterial resistance.
Ron Baker, Ph.D.
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Update: June 2012