Which of the following is a severe, chronic, two-phased, bacterial respiratory infection that has become increasingly difficult to treat because many antibiotics are no longer effective against it?

Which of the following is a severe, chronic, two-phased, bacterial respiratory infection that has become increasingly difficult to treat because many antibiotics are no longer effective against it?



A. SARS


B. MDR-TB


C. MRSA


D. HINI



Answer: B


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