1. Opportunistic Infections in MS What Is the Risk?

3. Introduction and Background

4. Presumed Mechanisms of Opportunistic Infections in MS

5. PML Natalizumab

6. PML DMF and Fingolimod

7. Cryptococcal Infection

8. Herpesvirus Infection in MS

9. VZV Infection

10. Listeriosis

11. Minimizing Infection Risk Non-PML

12. Risk Stratification for PML

13. Clinical Symptoms of PML

14. Minimizing PML Risk Monitoring MRI

15. Minimizing PML Risk Monitoring Lymphocyte Counts

16. Managing Opportunistic Infections JCV and PML

17. Managing Opportunistic Infections Cryptococci and Listeriosis

18. Conclusion

19. Abbreviations