Abstract
To the Editor: Nguyen et al. (Feb. 3 issue)1 report on the effect of the U.S. varicella vaccination program on disease-related mortality. The effectiveness of such programs also includes reducing severe varicella-associated complications. In Italy, from 1995 to 2003, when no universal childhood varicella vaccination program was in effect, we documented 303 admissions (median age of patients, 4.2 years; range, 0 to 15) to a children's research hospital for varicella for a total of 2420 days of hospitalization. Thirty-nine patients (13 percent) had varicella-associated complications (1.2 percent of admissions for varicella), including 13 with central nervous system involvement and 7 . . .
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