TABLE 1.

Cluster of serogroup B invasive meningococcal disease cases in South Shore of Québec City (region 12, Chaudière-Appalaches) and the adjacent region (region 03, La Capitale Nationale, Québec City), Québec, Canada, October 2004 to March 2005

PatientSampling dateNML isolate no.(yr)/sexcIsolate sourceLaboratory test results
124 Oct. 20042004-19414/FCSFPCR diagnosis, positive for serogroup B N. meningitidis
24 Oct. 20042004-195BloodPCR diagnosis, positive for serogroup B N. meningitidis; porA gene sequencing,d PorA VR1 = 19a and PorA VR2 = 15b
28 Oct. 2004a2004-200BloodCulture positive for N. meningitidis; B:17:P1.19 (ST-269)
224 Nov. 20042004-21415/MCSFPCR diagnosis, positive for serogroup B N. meningitidis; porA gene sequencing, PorA VR1 = 19a and PorA VR2 = 15b
330 Nov. 20042004-23720/MBloodCulture positive for N. meningitidis; B:17:P1.19 (ST-269)
4b2 Dec. 20042004-22975/MCSFPCR diagnosis, positive for serogroup B N. meningitidis; porA
    gene sequencing, PorA VR1 = 19a and PorA VR2 = 15b
523 Dec. 20042005-00917/FCSFPCR diagnosis, positive for serogroup B N. meningitidis; porA gene sequencing, PorA VR1 = 19a and PorA VR2 = 15b
617 Mar. 20052005-0756/FBloodPCR diagnosis, positive for serogroup B N. meningitidis; porA gene sequencing, PorA VR1 = 19a and PorA VR2 = 15b
725 Jan. 20052005-04546/MCSFCulture positive for N. meningitidis; B:17:P1.19 (ST-269)
  • a Date specimen received at LSPQ.

  • b Resident of region 03 and grandfather of patient 3.

  • c F, female; M, male.

  • d PorA VR types according to the nomenclature of Sacchi et al. (23).