November 27, 2020 7:59 am COVID-19 Immunity: How Long Do Antibodies Last? COVID-19 patients develop a certain level of immunity after battling the virus, but new studies find it may not last long. US & World Videos 1:20 Bruce Willis smiles with daughters in touching photos 1:38 Taylor Swift cheered on Travis Kelce at Chiefs-Raiders game 1:14 See Gwyneth Paltrow and Chris Martin's daughter Apple stun at debutante ball 2:34 Alec Baldwin slams claims that he profited from Halyna Hutchins death 2:13 Eddie Murphy's son Eric is engaged to Martin Lawrence's daughter Jasmin