作者单位:Oana Streinu-Cercel (14) (15) Anca Streinu-Cercel (14) (15) Ioana Berciu (14) (15) Alina Cristina Negu? (14) (15) Mihai S?ndulescu (14) Maria Magdalena Mo?oi (15) Adrian Streinu-Cercel (14) (15)
14. Carol Davila University of Medicine and Pharmacy, Bucharest, Romania 15. National Institute for Infectious Diseases “Prof. Dr. Matei Bal?- Bucharest, Romania