1. Department of Medicine Institute of Medical Sciences Banaras Hindu University Varanasi India
2. Department of Epidemiology College of Public Health University of Iowa Iowa City, IA USA
3. Department of Biochemistry Institute of Science Banaras Hindu University Varanasi India
4. Division of Entomology Walter Reed Army Institute of Research Silver Spring MD USA
5. Laboratory of Parasitic Diseases National Institute of Allergy and Infectious DiseasesNational Institute of Health Bethesda MD USA
6. Center for Emerging Infectious Diseases University of Iowa Coralville IA USA