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A MITOMI microfluidic device © Sebastian Maerkl / 2021 EPFL Antibody testing can be a powerful tool for tracking the spread of SARS-CoV2 infections, the virus responsible for the COVID-19 pandemic. A group of scientists from EPFL, UNIGE and HUG have now developed a reliable and cheap antibody test that can analyze more than 1,000 samples at once and requires a small drop of blood, such as that from a finger prick. After people get infected with the SARS-CoV-2 virus that causes COVID-19, they start to produce immune molecules called antibodies. COVID-19 antibody tests pick up on the presence of antibodies against SARS-CoV-2 in the blood. Because antibodies can take several days to weeks to develop, antibody tests can’t detect active infections, but they can help to find out what proportion of communities have been infected with the virus in the past. This knowledge is useful for epidemiological investigations, and informing public-health policies. Antibody tests are also a powerf

Sebastian maerklIdris guessousZoe swankIsabella eckerleSilvia stringhiniBenjamin meyerLaboratory of biological network characterizationDivision of laboratory medicineCentre for emerging viral diseasesBiological network characterizationLaboratory medicineMedical coordinatorEmerging viral diseasesSub saharan africaPopulation epidemiology unitLaboratory medicine