First on CNN: CDC team studying health impacts of Ohio train derailment fell ill during investigation

Seven US government investigators briefly fell ill in early March while studying the possible health impacts of a toxic train derailment in East Palestine, Ohio, the US Centers for Disease Control and Prevention confirmed to CNN on Thursday.Seven US government investigators briefly fell ill in early March while studying the possible health impacts of a toxic train derailment in East Palestine, Ohio, the US Centers for Disease Control and Prevention confirmed to CNN on Thursday.