- Varicella Disease (Chickenpox)
Centers for Disease Control, Department of Health and Human Services
Information for the Public, Health Care Professionals, Partners, Media, and Information in Spanish.
- Pink Book's chapter on Varicella (
 PDF)
Centers for Disease Control and Prevention, National Immunization Program
Varicella information from Epidemiology and Prevention of Vaccine-Preventable Diseases, The Pink Book.
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