TY - Generic T1 - Positive rubella sample in Belgium after vaccination of 15-month-old child Y1 - 0 A1 - Inne Nauwelaers A1 - E. Cornelissen A1 - M. Lapaille A1 - M. Abady A1 - Hubschen,J.M. A1 - Alexandra Vodolazkaia A1 - Marina Mukovnikova A1 - Steven Van Gucht ER -