Related Experiment Video
Updated: Jul 4, 2026

Opsono-Adherence Assay to Evaluate Functional Antibodies in Vaccine Development Against Bacillus anthracis and Other Encapsulated Pathogens
Published on: May 19, 2020
Update on immunizations in children and adolescents
1Department of Family Medicine, Scott & White Clinic, Texas A&M Health Science Center, College ofMedicine, College Station, Texas 77840, USA. lackerman@swmail.sw.org
Recent updates to childhood immunization schedules include new recommendations for influenza, hepatitis A, rotavirus, and varicella vaccines. Adolescent vaccines like Tdap, MCV4, and HPV are now routinely advised.
Area of Science:
- Pediatric Medicine
- Immunology
- Public Health
Background:
- The Advisory Committee on Immunization Practices (ACIP) has introduced significant changes to childhood and adolescent vaccination guidelines.
- These updates aim to enhance disease prevention and adapt to evolving scientific understanding of vaccine efficacy and safety.
Purpose of the Study:
- To summarize recent key changes in immunization recommendations for children and adolescents.
- To highlight the importance of updated vaccination schedules for primary care physicians.
Main Methods:
- Review of updated guidelines from the Advisory Committee on Immunization Practices (ACIP).
- Analysis of specific vaccine recommendations, including age groups, schedules, and target populations.
Main Results:
- Immunization schedules are now divided by age: birth to six years and seven to 18 years, with distinct catch-up schedules.
- Expanded recommendations include universal influenza vaccine for ages 6 months-18 years, hepatitis A vaccine for all 1-year-olds, and routine oral rotavirus vaccine at 2, 4, and 6 months.
- New adolescent recommendations (ages 11-12) include tetanus, diphtheria, and acellular pertussis (Tdap) vaccine, quadrivalent meningococcal conjugate (MCV4) vaccine, and quadrivalent human papillomavirus (HPV) vaccine.
Conclusions:
- Updated ACIP recommendations provide a comprehensive framework for pediatric and adolescent immunization.
- Family physicians are crucial in implementing these complex schedules and educating patients on the benefits of vaccines like Tdap, MCV4, and HPV.
- Timely vaccination, particularly HPV vaccine before sexual activity, is emphasized for maximum effectiveness.
Related Concept Videos
Vaccinations
Vaccines
Drug Dosing: Infants and Children
Development of Immunocompetence
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Immunodeficiency Diseases
There are three main causes of immunodeficiency disorders...
Pharmacokinetics in Pediatric Patients: Drug Excretion

