1. Institute of Ecology and Genetics of Microorganisms UB RAS; Perm Russia
2. Perm State University; Perm Russia
3. Perm Regional Center for Protection against AIDS and Infectious Diseases; Perm Russia
4. Institute of Immunology and Physiology UB RAS; Yekaterinburg Russia
5. Case Western Reserve University; Cleveland OH USA
6. National Institute of Child Health and Development; Bethesda MD USA
7. Vaccine Research Center; National Institutes of Health; Bethesda MD USA