There has been a 90% increase in the number of Covid-19 cases among children in the United States over the last four weeks, according to a new analysis by the American Academy of Pediatrics and the Children's Hospital Association that will be updated weekly. The new report uses case numbers provided by state health departments of 49 states, New York City, the District of Columbia, Puerto Rico and Guam. There were 179,990 new Covid-19 cases among US children between July 9 and August 6, according to the report. At least 380,174 total child Covid-19 cases have been reported as of August 6. As of now, it still appears that severe symptoms are rare among children with Covid-19 infections. Children were between 0.5% and 5.3% of total hospitalizations, according to data from the states that record that information. Children were 0% to 0.4% of all Covid-19 deaths. Nineteen states have reported no child deaths. In states that tracked the details, 0% to 0.5% of all child Covid-19 cases resulted in death. However, experts worry those numbers may increase as cases in children rise and more children with autoimmune disorders and other risk facts are impacted.