Nilsson, Sutter, Walther-Jallow, Haaft, Heeney, Åkerblom, Erfle, Thorstensson, Böttiger, Biberfeld, 2002. Immunization with recombinant modified vaccinia virus Ankara can modify mucosal simian immunodeficiency virus infection and delay disease progression in macaques 83.. https://doi.org/10.1099/0022-1317-83-4-807