Coronavirus and antibodies, illustration
Abstract illustration showing a coronavirus (family Coronaviridae, top left) surrounded by antibodies (blue/purple). Coronaviruses are a subfamily of RNA (ribonucleic acid) viruses which include the viruses the that cause Covid-19, SARS, and forms of the common cold. Antibodies are molecules released by immune cells, which neutralise foreign substances, or signal them for destruction., by RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY
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