drug resistance is a growing problem, particularly for infections such as mrsa, vre (vancomycin-resistant enterococci), tuberculosis, hiv, stds, gonorrhea, flu, pneumonia, malaria, e. drug resistance is a growing problem, particularly for infections such as mrsa, vre (vancomycin-resistant enterococci), tuberculosis, hiv, stds, gonorrhea, flu, pneumonia, malaria, e. Internal medicine free download