According to an American Academy of Pediatrics report released Monday, more than 144,000 new cases of children infected with COVID-19 were reported in the United States last week.

That number constitutes “by far the highest increase since this pandemic began.”

The report notes that as of November 19, nearly 1.2 million children (age 17 and under) have tested positive for the virus in the United States. Those cases represent 11.8% of all cases in the country.

In terms of current trends, AAP found that during the two weeks between November 5 and 19, there was a 28% increase in child COVID-19 cases, with 256,091 new cases during that period.

The report points out that, while severe illness is rare among children, “there is an urgent need to collect more data on longer-term impacts on children, including ways the virus may harm the long-term physical health of infected children, as well as its emotional and mental health effects.”

You can read the report in its entirety below: