About the Authors
Division of Medical Parasitology, Department of Microbiology, New York University School of Medicine, New York, New York, United States of America
Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts, United States of America
Infectious Diseases Unit, Sanofi-Aventis, Toulouse, France
The authors have declared that no competing interests exist.
Conceived and designed the experiments: AR GC BB. Performed the experiments: GA AC GC. Analyzed the data: GA AC GC BB AR. Contributed reagents/materials/analysis tools: GC BB. Wrote the paper: GA GC BB AR.