"While we understand that this research is ongoing and will need to adapt to the evolving nature of the pandemic, it is critical that Congress and the American public are able to gain insight into current data and emerging trends—including an overview of the vast array of symptoms individuals may experience, disaggregated by demographic groups—in order to inform policymaking and protect the public’s health," they wrote in their letter to CDC Director Rochelle Walensky."
Original source can be found here