1 MD, PhD, Carol Davila University of Medicine and Pharmacy, National Institute for Infectious Diseases "Prof. Dr. Matei Balș", No. 1 Dr. Calistrat Grozovici street, 021105 Bucharest, Romania.
2 MD, PhD, National Institute for Infectious Diseases "Prof. Dr. Matei Balș", No. 1 Dr. Calistrat Grozovici street, 021105 Bucharest, Romania.