Understanding Immune Responses to COVID-19 Vaccines in Young Children

Determinants of Early Childhood Immune Responses

NIH-funded research University of California, San Francisco · NIH-11144513

This work looks at how young children's bodies respond to COVID-19 vaccines, especially if they've had COVID-19 before.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Francisco NIH-funded
Lab location1 site (San Francisco, United States)
Project IDNIH-11144513 on NIH RePORTER

What this research studies

We want to understand how young children, specifically those aged 6 months to 4 years, develop protection after receiving the COVID-19 vaccine. We are particularly interested in whether having had a COVID-19 infection before vaccination changes how their immune system reacts. By studying their immune responses in detail, we hope to find the best ways to protect them from COVID-19 and related conditions like MIS-C. This information could help improve future vaccination plans for our youngest populations.

Who could benefit from this research

Good fit: Ideal candidates for this type of work would be young children aged 6 months to 4 years who are receiving SARS-CoV-2 immunization, including those with and without prior COVID-19 infection.

Not a fit: Patients outside the 6 months to 4 years age range or those not receiving SARS-CoV-2 immunization would not directly benefit from this specific research.

Why it matters

Potential benefit: If successful, this work could lead to better vaccination strategies and timing for young children, offering more effective and lasting protection against COVID-19.

How similar studies have performed: While general vaccine response studies exist, this specific focus on SARS-CoV-2 vaccine responses in young children with prior infection, and optimal timing, represents a novel and important area of investigation.

Where this research is happening

San Francisco, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.