Medical Testing

FDA authorizes new test to detect past Covid-19 infections The T-Detect COVID test, developed by Adapative Biotechnologies with help from Microsoft, was built with machine learning. Katie Palmer STAT

The Food and Drug Administration on Friday issued an emergency authorization for a new test to detect Covid-19 infections — one that stands apart from the hundreds already authorized.

The virus can sicken children in very different ways, a new study finds.

A large nationwide study has found important differences between the two major ways children have become seriously ill from the coronavirus. The findings may help doctors and parents better recognize the disease and understand more about the children who are at risk for either condition.