1. Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health , Bethesda, Maryland , USA
2. Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland , USA
3. Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland , USA
4. Center for Infectious Disease Imaging, Radiology and Imaging Sciences, NIH Clinical Center, National Institutes of Health , Bethesda, Maryland , USA
5. Critical Care Medicine Department, NIH Clinical Center, National Institutes of Health , Bethesda, Maryland , USA