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Antimicrobial Drug Resistance (AMDR)

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          i. Tuberculosis and MDR-TB



i. Tuberculosis and MDR-TB

MDR-TB and extensively-drug resistant (XDR-TB) tuberculosis is a critical problem globally (LoBue 2009). It is estimated that the global proportion of resistance among all tuberculosis cases is 4.8%. China, India, and the Russian Federation combined have the highest number of MDR-TB cases: China and India account for approximately 50% of the global burden and the Russian Federation accounts for an additional 7% (Wright and Zignol 2008). The population-weighted mean of MDR-TB among all TB cases is 5.3%, but ranges from 0% in some western European countries to more than 35% in some countries of the former Soviet Union (Wright and Zignol 2008). The highest proportions of TB cases are resistant to isoniazid and streptomycin, followed by rifampicin and ethambutol (Wright and Zignol 2008). Isolated resistance to fluoroquinolones has also been documented (Long et al. 2009). Increased incidence of pulmonary cavities is associated with MDR-TB (Aguiar et al. 2009). Drug-resistant TB disproportionately affects young adults (Palacios 2009); previous failed treatment, recent relapse, and homelessness are all associated with MDR- and XDR-TB.




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Table of Contents

ACTIVITY OVERVIEW
INTRODUCTION
SECTION ONE: The global threat of AMDR
SECTION TWO: Understanding AMDR
    1. Etiology and Epidemiology
    2. Incidence and Prevalence of Microbial Resistance
    3. Major AMDR Pathogens
       a. Acinetobacter baumanii
       b. Clostridium difficile
       c. Escherichia coli
       d. HIV/AIDS and Sexually Transmitted Infection
       e. Influenza virus
       f. Malaria (Plasmodium)
       g. Methicillin-resistant Staphylococcus aureus (MRSA)
       h. Streptococcus pneumoniae
       i. Tuberculosis and MDR-TB
       j. Vancomycin-Resistant Enterococcus (VRE)
SECTION THREE: Control and Prevention of AMDR
    1. Implications of Microbial Resistance
    2. Infections and Chronic Diseases
    3. Policies and Best Practices
       a. Antimicrobial Drug Stewardship
       b. Surveillance
       c. Environmental Decontamination
       d. Infection Control
       e. Patient Education
    4. Antibiotic Development Pipeline
SECTION FOUR: Conclusions
REFERENCES
APPENDICES
GLOSSARY
Test Questions
Program Evaluation
Self Assessment


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