1. Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
2. Department of Medicine, Division of Infectious Diseases, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
3. South Texas Veterans Health Care System, San Antonio, TX, USA
4. Department of Biomedical Engineering, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
5. South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX, USA
6. Department of Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA