“…The YF vaccine Stamaril ® (Sanofi-Pasteur, France) consisting of a live attenuated strain of YF virus (17 D-20 strain) was used in the study. Briefly, the travellers were followed for the occurrence of fever, malaise and myalgia, headache, nausea, vomiting, abdominal pain, diarrhoea, urticaria, local reaction and any other serious adverse event, on days 7 and 14, telephonically, post vaccination 6 . According to the Centers for Disease Control and Prevention (CDC), the incubation period of the AE due to YF varied from 1 to 10 days 7 .…”