Qiagen Gains CE Mark for COVID-19 Test That Measures T-Cell Response

Qiagen’s Quantiferon SARS-CoV-2 assay, which measures T-cell responses to the SARS-CoV-2 virus, has received a CE mark.

The assay detects CD4+ and CD8+ T-cell responses, which allows a more comprehensive assessment of immunity generated by COVID-19 vaccines, especially in vulnerable individuals.

T-cell response to the virus declines more slowly than antibody responses and may indicate how severe the course of COVID-19 will be in infected patients.