<p class="MsoNormal">“The antibody decay generated by the vaccine in humans goes down very slowly (...) We believe there will be protection potentially for a couple of years,” said <span style="color:#000000"><span style="font-size:16px"><span style="background-color:#fafafa">Moderna CEO Stephane Bancel said at an event organised by financial services group Oddo BHF.</span></span></span>.</p>