From the Guidelines
At 1 year of age, children should receive the MMR (Measles, Mumps, Rubella) vaccine and Varicella (Chickenpox) vaccine, with the option of either MMRV vaccine or separate MMR and Varicella vaccines, as well as the first dose of the Hepatitis A vaccine. The MMR vaccine protects against three potentially serious diseases, while the Varicella vaccine prevents chickenpox, which can lead to complications 1. The Hepatitis A vaccine is important for preventing liver disease, and according to the recommendations, all children who live in the United States should receive hepatitis A vaccine at 1 year of age as a 2-dose regimen 1.
Some key points to consider when administering these vaccines include:
- The first dose of MMR and Varicella vaccines is recommended at age 12-15 months, with the option of using either MMRV vaccine or separate MMR and Varicella vaccines 1.
- The Hepatitis A vaccine should be administered as a 2-dose regimen, with the first dose given at 1 year of age and the second dose given 6-12 months later 1.
- Children with a personal or family history of seizures of any etiology should generally be vaccinated with MMR vaccine and Varicella vaccine, rather than MMRV vaccine, due to the increased risk of febrile seizures associated with MMRV vaccine 1.
It's essential to follow the recommended vaccination schedule to ensure optimal protection for your child's health. The vaccines are crucial for building a child's immunity and protecting them from potentially harmful diseases. Some children may also receive catch-up doses of previous vaccines if they're behind schedule.
The benefits of these vaccines far outweigh the risks, and they are a crucial part of maintaining public health and preventing the spread of infectious diseases. By following the recommended vaccination schedule, parents can help protect their children from serious diseases and ensure they receive the best possible start in life.
From the Research
Vaccinations Recommended at 1 Year of Age
- The studies provided do not directly address the vaccinations recommended at 1 year of age 2, 3, 4, 5, 6.
- However, the studies discuss the effectiveness and safety of vaccines for measles, mumps, rubella, and varicella in children, which are typically administered in the first two years of life 3, 4, 5, 6.
- According to the studies, two doses of combined measles-mumps-rubella-varicella vaccine (MMRV) or one dose of monovalent varicella vaccine are recommended for children aged 11-22 months 3.
- The American Academy of Pediatrics recommends that children receive the MMR vaccine at 12-15 months of age and the varicella vaccine at 12-18 months of age, although this information is not explicitly stated in the provided studies.
- It is essential to consult the latest vaccination schedules and guidelines from reputable sources, such as the Centers for Disease Control and Prevention (CDC) or the World Health Organization (WHO), for the most up-to-date information on recommended vaccinations at 1 year of age.
Key Findings
- Vaccine effectiveness against varicella (any severity) after two doses in children aged 11 to 22 months is 95% in a 10-year follow-up 3.
- The effectiveness of Jeryl Lynn containing MMR vaccine in preventing mumps is 72% after one dose and 86% after two doses 4, 5.
- There is evidence supporting an association between MMR/MMR+V/MMRV vaccines and febrile seizures, as well as idiopathic thrombocytopaenic purpura (ITP) 4, 5.
Vaccine Administration
- A combined measles-mumps-rubella-varicella vaccine (MMRV) can be considered for the second dose in children previously vaccinated separately with MMR and varicella vaccines 6.
- The safety and immunogenicity of MMRV as a second dose in children up to six years of age have been studied, with results showing non-inferior immunogenicity and similar safety profiles compared to separate injections of MMR and varicella vaccines 6.