age cut off for varicella
If 2 injected or intranasal live-virus vaccines are not administered on the same day but <28 days apart (<30 days for yellow fever vaccine), the second vaccine should be repeated in ≥28 days (≥30 days for yellow fever vaccine). Can be given to children for their routine two doses of chickenpox vaccine at 12 through 15 months old and 4 through 6 years old. Children who get the first dose of this vaccine at 12 to 23 months old may have a higher chance of a seizure caused by fever. This is in comparison to children who get the measles, mumps, and rubella vaccine and the chickenpox vaccine separately during a doctor visit. Chickenpox is a very contagious disease caused by the varicella-zoster virus (VZV). It causes a blister-like rash, itching, tiredness, and fever. Chickenpox used to be very common in the United States. CDC recommends two doses of chickenpox vaccine for children, adolescents, and adults. In Newfoundland and Labrador, among a cohort of 586 children, 565 (96.4%) did not have detectable VZV antibody at one year of age. The proportion with VZV antibody increased thereafter to 12.8% and 33.9%, respectively, at age two and four years, indicating the extent of exposure to VZV at these ages. Children under 13 years old should get two doses of the chickenpox vaccine at these ages: 1st dose: 12 through 15 months. 2nd dose: 4 through 6 years (may be given earlier, if at least three months after the 1st dose) MMR and varicella vaccines either should be administered ≥2 weeks before receipt of a blood product or should be delayed 3–11 months after receipt of the blood product, depending on the vaccine (Table 2-04). IG administration may become necessary for another indication after MMR or varicella vaccines have been given. For Infants, Children, and Adults. The second dose may be given at an earlier age if it is given at least three months after the first dose. People 13 years or older (who have never had chickenpox and never received chickenpox vaccine) should get two doses at least 28 days apart. The immune response to an injected or intranasal live-virus vaccine (such as MMR, varicella, yellow fever, or live attenuated influenza vaccines) might be impaired if administered within 28 days of another live-virus vaccine (within 30 days for yellow fever vaccine). Herpes Zoster or shingles is a reactivation of latent varicella infection in the dorsal root ganglia in a localized area. The lesions are restricted to an area supplied by the sensory nerves along nerve pathways and are usually unilateral causing severe pain. Among 1135 school-age children, the proportion testing positive for VZV antibody increased from 44% at five years of age to 88.9% at 15 years of age, indicating the cumulative incidence of varicella in this age group.
Two doses of chickenpox vaccine at 12 through 15 months old and 4 through 6 years old.