1. Department of Civil & Environmental Engineering, Texas A&M University, College Station, Texas 77843-3136, United States
2. Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases, Atlanta, Georgia 30329, United States
3. Microscopy and Imaging Center, Texas A&M University, College Station, Texas 77843-2257, United States
4. Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States