How many infants born in the United States are breastfed? The CDC National Immunization Survey is a nationally representative sample of the U.S. population that provides the percent of U.S. children who are breastfed by birth year. Rates are provided on breastfeeding initiation, duration, and exclusivity.
Valtrex (valacyclovir) is an antiviral medication used to treat infections with: 1  herpes zoster (shingles), 2  herpes simplex genitalis (genital herpes), 3  and herpes labialis (cold sores).
Valtrex is not a cure for shingles, genital herpes, or cold sores. (Click Valtrex Uses for more information on what it is used for, including possible off-label uses.). Shingles, cold sores, chickenpox, and genital herpes are caused by viruses.Once a person has been infected with these viruses, the virus never goes away.altrex helps the body fight the infection by preventing the virus from multiplying. When used to treat genital herpes, the drug can help prevent outbreaks from recurring and can help prevent the spread of the virus to other people.