Children with weakened immune systems have not shown a higher risk of developing severe Covid-19 infection despite commonly displaying symptoms, a new study suggests.

During a 16-week period that covered the first wave of the pandemic, researchers from Southampton carried out an observational study of nearly 1500 immunocompromised children -- defined as requiring annual influenza vaccinations due to underlying conditions or medication. The children, their parents or guardians completed weekly questionnaires to provide information about any symptoms they had experienced, Covid-19 test results and the impact of the pandemic on their daily life.