The Main Contributing Factor to the Evolution of MDR-TB Is

question 1

Multiple Choice

The main contributing factor to the evolution of MDR-TB is ________.

• A)the slow growth of Mycobacterium tuberculosis requires antibiotic therapy for months rather than days,which is hard to sustain in some populations; cutting the regimen short allows the resistant bacteria to flourish
• B)the organisms that develop multidrug resistance have a different cell wall composition to the drug-susceptible organisms
• C)certain species of Mycobacterium tuberculosis are able to undergo bacterial transformation at a faster rate than other species,resulting in the transfer of resistance genes
• D)the abundance of antibiotics available in the United States and other developed countries makes it a particular problem for resistant strains to emerge in those parts of the world

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