Table 1.

Viscerotropic disease (YEL-AVD) probable and confirmed cases and reporting risk ratio (RRR) by age group, Brazil, 2007–2012^*

Age group years	Vaccine first doses	YEL-AVD N	Rate 100,000 doses	RRR (95% CI)
<1	8,442,107	1	0.01	0.19 (0.02; 1.44)
1–4	2,222,775	3	0.13	2.10 (0.58; 7.65)
5–9	1,079,662	0	0.00	undef
10–14	1,928,089	0	0.00	undef
15–59	15,592,430	10	0.06	Ref
60+	2,169,568	2	0.09	1.44 (0.31; 6.56)
Total	31,434,631	16	0.05

Ref = Reference; Undef = Undefined.

^*The Brazilian immunizations program provides the number of doses administered per age groups, and discriminates first doses and boosters Confidence intervals for RRRs are not statistically significant. Six cases were in males and 10 in females.