Max Theiler health at the Yale School of Medicine and the School of Public Health from 1964 to 1967. After passing the yellow fever virus through laboratory mice, Theiler found that the weakened virus conferred immunity on rhesus macaques. The stage was set for Theiler to develop a vaccine against the disease. Theiler first devised a test for the efficacy of experimental vaccines. In his test, sera from vaccinated human subjects were injected into mice to see if they protected the mice against yellow fever virus. This "mouse protection test" was used with variations as a measure of immunity until after World
Nobel Prize in Literature Cela, Günter Grass, Doris Lessing and Mario Vargas Llosa. The America Award in Literature, which does not include a monetary prize, presents itself as an alternative to the Nobel Prize in Literature. To date, Harold Pinter and José Saramago are the only writers to have received both the America Award and the Nobel Prize in Literature. There are also prizes for honouring the lifetime achievement of writers in specific languages, like the Miguel de Cervantes Prize (for Spanish language, established in 1976) and the Camões Prize (for Portuguese language, established in 1989). Nobel laureates who were also awarded the Miguel