1. Department of Microbiology, Immunology and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA
2. The Loewenberg College of Nursing, The University of Memphis, Memphis, TN, USA
3. School of Health Studies, The University of Memphis, Memphis, TN, USA
4. Department of Preventive Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA