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Chickenpox Vaccines
Studies from Columbia University, Division of Pediatric Infectious Diseases update current data on chickenpox vaccines
May 7th, 2008
Researchers detail in 'Primary vaccine failure after 1 dose of varicella vaccine in healthy children,' new data in chickenpox. "Universal immunization of young children with 1 dose of varicella vaccine was recommended in the United States in 1995, and it has significantly decreased the incidence of chickenpox. Outbreaks of varicella, however, are reported among vaccinated children," investigators in the United States report. "Although vaccine effectiveness has usually been 85%, rates as low as 44% have been observed. Whether this is from primary or secondary vaccine failure-or both-is unclear. We tested serum samples from 148 healthy children immunized against varicella...
Source: Vaccine Weekly (2008-05-07)
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