Affiliation: | 1. Department of Biology and Center for Microbial Sciences, San Diego State University, , San Diego, CA, 92182 USA;2. Department of Medicine, University of California San Diego School of Medicine, , La Jolla, CA, 92093 USA;3. Department of Pediatric Infectious Diseases, University of Washington School of Medicine and Seattle Children's Hospital Research Institute, , Seattle, WA, 98101 USA;4. Department of Pediatrics, University of California San Diego School of Medicine, , La Jolla, CA, 92093 USA |