California Department of Health Service www.mch.dhs.ca.gov
California Department of Health Services - Immunization Branch www.dhs.ca.gov/ps/dcdc/izgroup/
CDC National Center for Infectious Diseases - Hepatitis Branch www.cdc.gov/ncidod/diseases/hepatitis/index.htm
CDC National Center for Infectious Diseases - Traveler's Health www.cdc.gov/travel/
CDC National Immunization Program www.cdc.gov/nip
CDC National Immunization Program www.cdc.gov/nip/publications/VIS/default.htm
Chicken Pox Information from Merck www.chickenpoxinfo.com
Immunization Action Coalition www.immunize.org
Immunization Newsbriefs - National Network for Immunization Information www.infoinc.com/imnews2/imnews.html
Immunizations for Seniors www.immunizeseniors.org
Morbidity and Mortality Weekly Report www.cdc.gov/mmwr/
National Network for Immunization Information www.immunizationinfo.org
San Diego County Immunization Coalition www.immunization-sd.org
YMCA Childcare Resource Services www.ymcacrs.org