Oral or peroral administration, including intragastrically, of killed whole pneumococci, lysate of pneumococci and isolated and purified PspA, as well as immunogenic fragments thereof, particularly when administered with an adjuvant such as cholera toxin provides protection in a host, animal or human, against pneumococcal infection, including colonization, and systemic infection, such as sepsis. The ability to elicit protection against pneumococcal colonization in a host prevents carriage among immunized individuals, which can lead to elimination of disease from the population as a whole.

L'administration orale ou perorale, incluant intragastrically, des pneumococci entiers tués, lysate des pneumococci et PspA d'isolement et épuré, aussi bien que les fragments immunogènes en, en particulier une fois administrée avec un adjuvant tel que la toxine de choléra assure la protection dans un centre serveur, un animal ou un humain, contre l'infection pneumococcal, y compris la colonisation, et l'infection systémique, telle que le sepsis. La capacité d'obtenir la protection contre la colonisation pneumococcal dans un centre serveur empêche le chariot parmi les individus immunisés, qui peuvent mener à l'élimination de la maladie à partir de la population dans l'ensemble.

 
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