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BACKGROUND Continued surveillance, and detailed investigation of direct and indirect effects of conjugated vaccines and risk factors for invasive H.influenzae serotype B (Hib) disease in the vaccine(More)
We analysed time trends in the incidence of invasive Haemophilus influenzae disease in Switzerland between 1980 and 1993 to investigate whether conjugated H. influenzae type b vaccines, licensed in(More)
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