TY - JOUR DP - http://iris.who.int/ DB - WHO IRIS EP - 198 AU - World Health Organization LA - en LA - fr UR - https://iris.who.int/handle/10665/239951 JF - Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire DA - 1951 PY - 1951 IS - 19 SP - 198 TI - YELLOW FEVER IMMUNIZATION = VACCINATION ANTIAMARILE VL - 26 ER -