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Old 09-10-2010, 10:12 AM   #1
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Default Drug-resistant germs found to help their brethren through the attack

Drug-resistant germs found to help their brethren through the attack
Sept. 1, 2010
Courtesy of Howard Hughes Medical Institute
and World Science staff

Drug-resistant germs found to help their brethren through the attack
excerpt from above:
Quote:
Confronting at­tack by an­ti­bi­otics, some bac­te­ria help each oth­er out—and un­for­tu­nately for us, they’re bet­ter off for it, re­search­ers have found.

Though a small frac­tion of pathogens in a col­o­ny may have evolved the abil­ity to re­sist a drug or class of drugs, these “su­per bugs” were found to help their more vul­ner­a­ble peers by over-pro­duc­ing a drug-fighting sub­stance.

Pre­vail­ing wis­dom held that an­ti­bi­ot­ic re­sistance works only on an in­di­vid­ual lev­el: a bac­te­ri­um ac­quires a muta­t­ion that con­fers pro­tec­tion against a drug, al­low­ing it to sur­vive and re­pro­duce...
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