Centers for Disease Control and Prevention
Signs and Symptoms
Common COVID-19 symptoms among children include fever, headache, sore throat, cough, fatigue, nausea/vomiting, and diarrhea.  However, many children and adults infected with the virus that causes COVID-19 are asymptomatic (meaning they have no signs or symptoms of illness).
Impact of COVID-19 on Children
Collecting and sharing data, including how it affects different places and populations, is important for understanding the context and burden of the COVID-19 pandemic. School officials should make decisions about school reopening based on available data including levels of community transmission and their capacity to implement appropriate mitigation measures in schools. Children appear to be at lower risk for contracting COVID-19 compared to adults. While some children have been sick with COVID-19, adults make up nearly 95% of reported COVID-19 cases.  Early reports suggest children are less likely to get COVID-19 than adults, and when they do get COVID-19, they generally have a less serious illness.  As of July 21, 2020, 6.6% of reported COVID-19 cases and less than 0.1% of COVID-19-related deaths are among children and adolescents less than 18 years of age in the United States. 
Early reports suggest the number of COVID-19 cases among children may vary by age and other factors. Adolescents aged 10-17 may be more likely to become infected with SARS-CoV-2 than children younger than age 10, ,  but adolescents do not appear to be at higher risk of developing severe illness.  There are currently a higher proportion of COVID-19 cases among Hispanic/Latino children as compared to non-Hispanic white children. Children and adults with certain underlying medical conditions are at increased risk of severe illness from COVID-19.  Severe illness means that they may require hospitalization, intensive care, or a ventilator to help them breathe, or may even die. Children with intellectual and developmental disabilities are more likely to have comorbid medical conditions (e.g., diseases of the respiratory system; endocrine, nutritional and metabolic diseases; and diseases of the circulatory system) that may put them at increased risk for severe illness from COVID-19.  Although rare, some children have developed multisystem inflammatory syndrome (MIS-C) after exposure to SARS-CoV-2. As of May 20, 2020, the majority of children hospitalized with MIS-C had recovered. 
Data on SARS-CoV-2 transmission among children are limited. Evidence from other countries suggests that the majority of children with COVID-19 were infected by a family member.  For example, the first pediatric patients in South Korea and Vietnam were most likely from contact with an adult family member. ,  Published reports from contact tracing of students with COVID-19 in schools from France, Australia, and Ireland suggest that students are not as likely to transmit the virus to other students compared to household contacts. , ,  However, more research is needed on SARS-CoV-2 transmission between children and household members.