A new T-cell test might be better than antibodies at detecting past coronavirus infection

The world has come to depend on antibody tests to check whether someone's already had Covid-19, but a different test, one that looks at coronavirus-specific T cells, was found to be more effective, according to a new study.

"This makes sense. It's well known that antibodies wane, but T cells have immunological memory," said Dr. Peter Hotez, an infectious disease specialist.

https://www.cnn.com/2020/11/10/health/covid-new-test-t-cells/index.html