NIH Effort Seeks To Understand MIS-C, Range Of SARS-CoV-2 Effects On Children

The National Institutes of Health has launched a new research effort to understand how SARS-CoV-2, the virus that causes COVID-19, affects children, who account for roughly 13% of the total cases of COVID-19 in the United States. The effort is called the Collaboration to Assess Risk and Identify Long-term Outcomes for Children with COVID (CARING for Children with COVID). This research program is developing and funding studies to investigate why some children are at greater risk for SARS-CoV-2 infection than others, why symptoms vary among children who are infected, and how to identify children at risk for severe illness from SARS-CoV-2 infection. Research on the latter question is focused particularly on multisystem inflammatory syndrome in children (MIS-C), a life-threatening condition marked by severe inflammation of one or more parts of the body, including the heart, lungs, kidneys, brain, skin, eyes and gastrointestinal organs.

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The program is led by the National Heart, Lung, and Blood Institute (NHLBI) and the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) in collaboration with the National Institute of Allergy and Infectious Diseases (NIAID). Research conducted through CARING for Children with COVID is supported in part by the Coronavirus Aid, Relief, and Economic Security Act.

“This effort stems from NIH’s commitment to understanding the spectrum of risk that SARS-CoV-2 poses for children and to identifying interventions to improve their short- and long-term health outcomes,” said NICHD Director and CARING for Children with COVID co-chair Diana Bianchi, MD.

Based on current data, most children with SARS-CoV-2 infection do not develop serious illness. However, those who do go on to develop MIS-C can experience prolonged fever and severe abdominal pain and may progress to shock. Although most children with MIS-C survive, its cause and long-term effects remain largely unknown. There is also early evidence that some children with asymptomatic or mild infection may go on to develop such long term symptoms as fatigue, muscle and joint pain, and respiratory problems.

“While much of the devastation wrought by COVID-19 is on older and vulnerable populations, it is affecting children in ways we are just beginning to understand,” said Gary Gibbons, MD, director of the NHLBI and co-chair of CARING for Children with COVID. “That’s why this research and these networks are so critical.”

Specifically, the program developed new research protocols for three clinical networks with sites across the country, to include children with SARS-CoV-2 infection and related conditions, including MIS-C:

CARING for Children with COVID also includes Predicting Viral-Associated Inflammatory Disease Severity in Children with Laboratory Diagnostics and Artificial Intelligence (PreVAIL kIds), a research funding program to encourage the development of approaches that identify children at high risk for developing MIS-C. PreVAIL kIds is funded by NIH’s Rapid Acceleration of Diagnostics (RADx) Radical (RADx-rad) program to support new, non-traditional approaches and reimagined uses of existing tools to address gaps in COVID-19 testing and surveillance.

Although the studies supported by CARING for Children with COVID have slightly different goals, all will collect data on a core set of health measures that can later be analyzed across studies. Data from CARING for Children with COVID activities will be made available on multiple NIH web platforms to allow researchers to conduct additional analyses and make more discoveries.

More information on the effort is available on the CARING for Children with COVID website at https://caring4kidswithcovid.nih.gov.

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