(Reuters) - It wasn’t easy to build a COVID-19 antibody test during Illinois’ statewide lockdown.
In April, when a key enzyme couldn't be delivered to his shuttered laboratory, Northwestern University researcher Thomas McDade hunted for the package across the empty campus near Chicago, finally locating it at a loading dock. To verify the test’s accuracy, the biological anthropologist and his colleague, pharmacologist Alexis Demonbreun, asked friends and family if they’d be willing to spot them some blood. McDade took a sample from his wife over their kitchen table.