3 ms·and perhaps residual previous-exposure widely-disseminated immunity to the class of viruses?by jjtheblunt 7y agoand perhaps residual previous-exposure widely-disseminated immunity to the class of viruses?skmurphy 7y agoI have not read anything that indicates a cross-immunity between the Wuhan 2019 SARS and Guangdong 2002 SARS.greedo 7y agoThis is a novel coronavirus, so no real relationship to the previous cases other than the shape.