Siemens Healthineers has developed an antibody test that outperformed others in an evaluation by Public Health England (PHE). PHE and the University of Oxford collected and analyzed 536 samples taken from adults with laboratory-confirmed infections more than 20 days after the onset of COVID-19 symptoms. They also tested 994 research specimens taken between 2015 and 2018. Immunoassays from Siemens, Abbott, DiaSorin and Roche were used to analyze the samples. The Siemens test was able to meet the sensitivity criterion, while all tests analyzed met PHE’s specificity criterion. Read more.