<prompt> All are true about Yellow Fever exceptIncubation period is 3-6 daysValidity of Intl certificate of Vaccination lasts up to 10 yearsUrban form is controlled by 17 D vaccineAedes aegypti index should not be more than 10 to ensure freedom from yellow Fever  <response>: Incubation Period: 3 6 days Yellow Fever Vaccine:Live attenuated, lyophilized Freeze dried vaccineStrain: 17D strain Chick Embryo grownReconstitution with Diluent: Cold physiological salineImmunity lasts: From 7 days of Vaccination till 35 yearsWHO recommended validity of Vaccination Certificate for International travel: from 10 days to 10 yearsYF vaccine is the only Live vaccine that can be administered in Pregnancy if there is risk of exposure 