How young children's immune systems respond to COVID-19

Early life B cell responses and inflammation following SARS-CoV-2 infection

NIH-funded research Weill Medical Coll of Cornell Univ · NIH-11173627

Looking at antibody and inflammation responses after COVID-19 in children and some adults to better understand why children often have milder illness.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionWeill Medical Coll of Cornell Univ NIH-funded
Lab location1 site (New York, United States)
Project IDNIH-11173627 on NIH RePORTER

What this research studies

If you join, researchers will collect blood samples from children (including very young children) and from adults who had COVID‑19, including people with no or mild symptoms. They'll measure antibody levels, B cell activity, and inflammation markers over time and test how those responses work against different virus variants. The team will compare mild or asymptomatic children's immune responses with those from hospitalized children and adults to find immune features that may protect kids. Results aim to improve understanding of reinfection risk and inform vaccination and public‑health decisions for children.

Who could benefit from this research

Good fit: Children (especially ages 0–11) who previously had SARS‑CoV‑2 infection, including asymptomatic or mildly symptomatic cases, and who can provide blood samples (with some adult participants for comparison).

Not a fit: People without prior COVID‑19 infection or those unwilling/unable to give blood samples are unlikely to be eligible or to directly benefit from participation.

Why it matters

Potential benefit: Could identify immune markers of protection in children and help guide pediatric vaccination and policies to keep kids safer.

How similar studies have performed: Other studies have described antibody responses in adults and in severe pediatric cases (including MIS‑C), but long‑term B cell and inflammation responses in mild or asymptomatic children remain less studied.

Where this research is happening

New York, 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.
Conditions Acquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency Syndrome Virus
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.