Vaccines Against Meningococcus - An update of the progresses in meningitis prevention. Proceeding of the Meningococcus Scientific Exchange Meeting. Siena, Italy. July 1-3, 2008. [electronic resource] - Vaccine Jun 2009 - B1-125 p. digital Publication Type: Congress; Overall ISSN: 1873-2518 Subjects--Topical Terms: HumansMeningococcal Infections--immunologyMeningococcal Vaccines--immunologyNeisseria meningitidis--immunology