Table 1.

Reports of ten persons with yellow fever vaccine failure

Age (years)/sex	Reference	Vaccine source	Time since immunization*	Date of disease onset	Outcome	Clinical presentation	Comments
32/M†	Elliot74	Vaccination on service personnel	1 year 4 months	Jan 1942	Died	Severe disease	In West Africa for 3.5 months before yellow fever developed
35/M†	Elliot74	Vaccination on service personnel	1 year 3 months	Feb 1942	Died	Severe disease	In West Africa for 14 months before yellow fever developed
25/M†	Elliot74	Vaccination on service personnel	1 year 4 months	Feb 1942	Recovered	Mild disease	In West Africa for 15.5 months before yellow fever developed
39/M‡	Ross and others75	Not stated	4 years 81 days	Jan 1952	Died	Severe disease	Engaged in drilling operations in Uganda (Toro district)
37/F‡	Nolla-Salas and others76	Travel clinic in Madrid (she had a valid international certificate)	5 years	Oct 1988	Recovered	Severe disease	In West Africa for 17 days before she had symptoms
21/M	Tuboi and others77	Evidence of prior vaccination in surveillance system	8 months	1998–2002§	Recovered	Mild disease	No other data reported
20/F	Tuboi and others77	Evidence of prior vaccination in surveillance system	5 years 2 months	1998–2002§	Recovered	Severe disease	No other data reported
17/F	Tuboi an others77	Evidence of prior vaccination in surveillance system	1 year 6 months	1998–2002§	Recovered	Severe disease	No other data reported
62/M	Tuboi and others58	Evidence of prior vaccination in surveillance system	1 year	1998–2002§	Died	Severe disease	No other data reported
30/F	Tuboi and others58	Evidence of prior vaccination in surveillance system	5 months	1998–2002§	Died	Severe disease	No other data reported

^*Time elapsed since vaccine was reported to onset of symptoms.

^†Soldier.

^‡Traveler.

^§Reference does not specify date of disease onset.