A T-cell test developed by Adaptive Biotechnologies could become the first commercially available test of its kind, and it may be more effective at detecting past COVID-19 infections than antibody ...

The immune systems of some people who have not been exposed to the novel coronavirus could have some familiarity with the pathogen -- possibly helping to reduce the severity of illness if that person ...

This study shows that SARS-CoV-2 infection and vaccination generate strong, highly specific spike-binding immune responses ...

EVANSTON, IL — Is it possible you were infected with a mild form of COVID-19 and didn’t know it? How robust is your body’s immune response to the vaccine, and how will we know whether we’ve reached ...

COVID-19 tests used to be able to detect a positive case within the first 48 hours, but many results are now delayed until four days after symptoms appear, according to the LA Times. Elizabeth Hudson, ...

The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...