It is thought that attenuation occurs especially in a laboratory setting because nonvirulent or weakly virulent mutants grow faster in laboratory media when there is no selective advantage to virulence. pathogens lose virulence with age and survive longer in laboratory cultures. there is selection for more virulent strains in the laboratory. patients can be treated with drugs that induce attenuation.

It is thought that attenuation occurs especially in a laboratory setting because nonvirulent or weakly virulent mutants grow faster in laboratory media when there is no selective advantage to virulence. pathogens lose virulence with age and survive longer in laboratory cultures. there is selection for more virulent strains in the laboratory. patients can be treated with drugs that induce attenuation.

Nutrition Now

8th Edition

ISBN:9781337415408

Author:Brown

Publisher:Brown

Chapter32: The Multiple Dimensions Of Food Safety

Section: Chapter Questions

Problem 4RQ

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