An operational definition is a clear, concise, detailed definition of a measure. You need operational definitions when collecting all types of data. It is particularly important when a decision is being made about whether something is defective or not defective or whether a defect exists or not.
The varicella vaccine protects against chickenpox (varicella), a common and very contagious childhood viral illness. The varicella vaccine is given by injection when kids are between 12 and 15 months old. They receive a booster shot for further protection at 4 to 6 years of age. Kids who are older than 6 but younger than 13 who have not had chickenpox also may receive the vaccine, with the two doses given at least 3 months apart. Kids 13 years or older who have not had either chickenpox or the vaccine need two vaccine doses at least 1 month apart.
VARIVAXÂ® Varicella Virus Vaccine Live Suspension for subcutaneous injection Initial U.S. Approval: 1995 ----------------------------INDICATOI NS AND USAGE---------------------------- VARIVAX is a vaccine indicated for active immunization for the prevention of varicella in individuals 12 months of age and older. Provide a copy of the patient information (PPI) located at the end of this insert and discuss any questions or concerns. ï· Inform patient, parent, or guardian that vaccination with VARIVAX may not result in protection of all healthy, susceptible children, adolescents, and adults.