TABLE 4

MDR pneumococcal serotypes during the PreVac (2009 to 2011) and PostVac-II (2015 to 2017) periods

MDR serotypePreVac isolatesPostVac-II isolatesp value
No.%No.%
6A10.9001.000
6B98.359.11.000
6C10.9916.4<0.001
1421.911.81.000
15A10.959.10.017
15B/C0011.80.337
19F8780.620a36.4<0.001
23F10.9001.000
23A0011.80.337
35B0011.80.337
Not determinedb10.9001.000
NESpc54.61221.8<0.001
Total MDR serotypes108100551000.010
Total pneumococcal isolates31434.423023.90.002
  • a Seven isolates of serotype 19F were detected in the same patient in 2017.

  • b Serotypes other than those included in the multiplex PCR panel of the study.

  • c NESp, nonencapsulated S. pneumoniae.