FILE PHOTO: A blood sample sits on a table at an antibody testing program at the Hollymoor Ambulance Hub of the West Midlands Ambulance Service, operated by the West Midlands Ambulance Service NHS Foundation Trust, in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS/File Photo
ZURICH (Reuters) - Many studies assessing the accuracy of COVID-19 antibody tests had major shortcomings, a review released on Thursday concluded, offering further evidence the blood tests are of little use for people seeking to know with certainty if they have been infected.
Cochrane, a British-based journal that reviews research evidence to help decision makers adopt better health policies, looked at 54 studies, mostly from Asia, that sought to measure the reliability of tests purporting to show whether somebody has developed antibodies against the new coronavirus.
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