%0 Journal Article %A Johansen, K %A Lopalco, P L %T Passive immunity against measles in infants: is there a need for policy changes in the European vaccination schedules? %D 2007 %J Eurosurveillance %V 12 %N 9 %P 3-4%P 728 %R doi:https://doi.org/10.2807/esm.12.09.00728-en %K pertussis %U https://www.eurosurveillance.org/content/10.2807/esm.12.09.00728-en