1. Department of Parasitology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
2. National Institute of Infectious Diseases “Prof. Dr. Matei Balș”, 021105 Bucharest, Romania
3. Department of Neurosurgery, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
4. Department of Epidemiology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
5. Military Medicine Institute, 010919 Bucharest, Romania
6. Colentina Clinical Hospital, 021151 Bucharest, Romania