Good News for COVID-19 Vaccine: Immune System Shows Robust Response to SARS-CoV-2

A detailed analysis of the immune response to SARS-CoV-2 found that the immune system can recognize the virus in multiple ways. A study of twenty average COVID-19 cases found SARS-CoV-2−specific CD4+ T cell and antibody responses in all cases. They also detected substantial crossreactivity in unexposed individuals, offering a piece of good news that dispels fears that the virus may elude ongoing efforts to create an effective vaccine.