Double dose of varicella vaccine in children linked to better protection

Double dose of varicella vaccine in children linked to better protection
Researchers found that two-dose varicella vaccination, first at age 1 and second at ages 4 to 6, had a slightly more than 97% effectiveness in preventing chickenpox. The findings in Pediatrics were based on 533 children with and without chickenpox in Philadelphia and northern Los Angeles. HealthDay News (3/14)