Table 2.

Incidence rates of alleged varicella among vaccinated children

	Total	Three-year rate (%)
Varicella cases
Definite (vesicles present, physician confirmation)	22	5.1
Probable (vesicles present)	18	4.2
Suspected (exposure, nonvesicular rash)	31	7.2
Unlikely (no known exposure, nonvesicular rash)	9	2.1
Subtotal	80	18.6
Zoster cases
Definite (vesicles present, physician confirmed)	1	0.2
Suspected (physician diagnosis, no vesicles)	1	0.2
Unlikely (no physician examination, no vesicles)	1	0.2
Subtotal	3	0.7