| 1 (415) | Academy of Sciences of the Czech Republic * | CZE |  |
| 2 (601) | Jagiellonian University | POL |  |
| 3 (690) | University of Ljubljana * | SVN | |
| 4 (692) | University of Belgrade | SRB | |
| 5 (704) | National Institute of Public Health, Czech Republic | CZE |  |
| 6 (741) | Russian Academy of Sciences * | RUS | |
| 7 (821) | Russian Academy of Medical Sciences | RUS | |
| 8 (845) | Charles University * | CZE | |
| 9 (871) | Masaryk University | CZE | |
| 10 (914) | University of Zagreb | HRV | |
| 11 (981) | I. Mechnikov Research Institute of Vaccines and Sera of the Russian Academy of Medical Sciences | RUS | |
| 12 (984) | Institute of Epidemiology and Microbiology of the Russian Academy of Medical Sciences | RUS | |
| 13 (986) | I.M. Sechenov First Moscow State Medical University | RUS | |
| 14 (987) | Omsk State Medical University | RUS | |
| 15 (990) | Pirogov Russian National Research Medical University | RUS | |
| 16 (991) | Peoples'Friendship University of Russia | RUS | |
|
