From the Centers for Disease Control and Prevention. Serogroup W-135 meningococcal disease among travelers returning from Saudi Arabia--United States, 2000.
D006801:Humans; D008589:Meningococcal Infections / Q000453:epidemiology*; D009345:Neisseria meningitidis / Q000302:isolation & purification*; D012529:Saudi Arabia; D012703:Serotyping; D014195:Travel; D014481:United States / Q000453:epidemiology