title: Fatal meningococcaemia due to group W135 amongst Haj pilgrims: implications for future vaccination policy.
authors.affiliation: King Abdul Aziz Hospital, Madinah Al-Munawarah, Saudi Arabia.
authors.forename: M
authors.initials: M
authors.lastname: Yousuf
authors.forename: A
authors.initials: A
authors.lastname: Nadeem
mesh_terms: D006801:Humans; D008297:Male; D008585:Meningitis, Meningococcal / Q000175:diagnosis / Q000401:mortality / Q000517:prevention & control*; D008875:Middle Aged; D009345:Neisseria meningitidis / Q000145:classification* / Q000302:isolation & purification; D012529:Saudi Arabia; D014611:Vaccination