How COVID-19 and other common respiratory viruses affect young children

SARS-CoV-2 and Respiratory Virus Co-Infections Among Young Children

NIH-funded research Kaiser Foundation Research Institute · NIH-11401570

Looks at how having COVID-19 at the same time as other respiratory viruses changes illness and complications in infants and young children.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionKaiser Foundation Research Institute NIH-funded
Lab location1 site (Oakland, UNITED STATES)
Project IDNIH-11401570 on NIH RePORTER

What this research studies

If your child joins, researchers will compare children who have COVID-19 alone with those who also test positive for viruses like RSV, influenza, or rhinovirus. They will collect medical records, symptom information, and respiratory samples from children seen in clinics and hospitals and run lab tests to identify which viruses are present. The team will follow how sick children become, note complications such as respiratory failure or MIS-C, and measure markers of inflammation to see how co-infections affect outcomes. Findings are intended to show which young children are at higher risk and to inform better treatment and prevention strategies.

Who could benefit from this research

Good fit: Infants and young children, especially those aged 0–2 years, with recent respiratory symptoms, a positive COVID-19 test, or hospitalization for respiratory illness.

Not a fit: Adults and children without respiratory infections or whose conditions are unrelated to viral co-infections are unlikely to benefit directly from this work.

Why it matters

Potential benefit: Could help doctors identify high-risk children and guide treatments or prevention to reduce severe respiratory illness.

How similar studies have performed: Prior studies indicate co-infections can worsen illness in very young children, but comprehensive prospective studies combining clinical data and lab testing remain limited.

Where this research is happening

Oakland, 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.