1. Coxiella Pathogenesis Section
2. Microscopy Unit, Research Technology Section, Research Technology Branch, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana 59840
3. Host-Parasite Interactions Section, Laboratory of Intracellular Parasites
4. Department of Medical Microbiology and Immunology, Texas A&M University System Health Science Center, College Station, Texas 77843-1114