摘要:An attempt was made to assess the protective influence of killed intranasal influenza B vaccine against a homologous virus challenge. Two types of trial were performed. In the first of these, the vaccine was compared with an inert placebo and, in the second, with conventional homologous and heterologous parenteral vaccines. Little protective effect by the intranasal vaccine was demonstrated. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (283K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 549 550 551