Changes

Bacteria and other disease-causing organisms have a remarkable ability to mutate and acquire resistance genes from other organisms and thereby develop resistance to antimicrobial drugs. When an antimicrobial drug is used, the selective pressure exerted by the drug favors the growth of organisms that are resistant to the drug’s action.

Bacteria and other disease-causing [[organisms]] have a remarkable ability to mutate and acquire resistance genes from other organisms and thereby develop resistance to antimicrobial drugs. When an antimicrobial drug is used, the selective pressure exerted by the drug favors the growth of organisms that are resistant to the drug’s action.

==References==

==References==

[http://www.fsis.usda.gov/Help/A-Z_Index/index.asp USDA Index]

[http://www.fsis.usda.gov/Help/A-Z_Index/index.asp USDA Index]