Strains of Mycobacterium Tuberculosis Designated as (BCG/MDR/XDR) Strains Are Resistant

question 61

Short Answer

Strains of Mycobacterium tuberculosis designated as (BCG/MDR/XDR) strains are resistant in vitro to three or more antitubercular drugs in addition to isoniazid and rifampin. (Be sure to use uppercase letters in your answer.)

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Definitions:

Untested Models

Hypothetical or proposed frameworks that have not been validated through experimentation or real-world application.

Biological Model

A representation of a biological process or system, often using mathematical equations or computer simulations, to study complex phenomena in biology.

Positive Feedback Loop

A process where the output of a system amplifies the initial condition, leading to an even greater output in a self-reinforcing cycle.

Negative Feedback Loop

A regulatory mechanism in which a system responds in a way that reverses the direction of a change, helping to maintain stability or equilibrium.