Serial testing with an interferon-γ release assay in German healthcare workers

Anja Schablon, Melanie Harling, Roland Diel, Felix C. Ringshausen, Jose Torres Costa & Albert Nienhaus
Aim: Data concerning conversion and reversion rates in the serial testing of healthcare workers (HCWs) is rare. So far, there is no consensus on how to define and interpret interferon-gamma release assays (IGRA) conversions and reversions, or how to deal with such results. We analysed conversion and reversion rates in the serial testing of HCWs using an IGRA. Methods: The study population comprises 287 HCWs, who participated in routine occupational safety and health screening for...