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Children and young adults with compromised immune systems, such as those undergoing cancer treatment, may experience a prolonged period of infection with SARS-CoV-2, the virus that causes COVID-19, and the extended duration of infection may increase the incidence of mutations. This case study was conducted by investigators at Children's Hospital Los Angeles and is published in the journal
Most people are infectious for about 10 days after first showing COVID-19 symptoms. In this study, researchers describe two children and a young adult with acute lymphoblastic leukemia who tested positive for SARS-CoV-2 for months. This is the first report of prolonged infection in a pediatric or young adult population.