Table 1 The Quebec vaccine schedule before 24 months of age and definition of vaccine delays used in the analysis
Recommended age | Vaccine schedule by date of several changes made | Minimum acceptable age | Age of child when vaccine delays were initiated | ||||
|---|---|---|---|---|---|---|---|
January 2006 | May 2008 | November 2011 | May 2013 | June 2013 | |||
2 months | DTaP-IPV-Hib, PCV | DTaP-IPV-Hib, PCV | DTaP-IPV-Hib, PCV Rota | DTaP-IPV-Hib, PCV Rota | DTaP-IPV-Hib-HB, PCV, Rota | 42 days | ≥ 91 days (61 days + 30.43 days) |
4 months | DTaP-IPV-Hib, PCV | DTaP-IPV-Hib, PCV | DTaP-IPV-Hib, PCV Rota | DTaP-IPV-Hib, PCV Rota | DTaP-IPV-Hib-HB, PCV, Rota | Previous doses + 28 days | ≥ 152 days (122 days + 30.43 days) |
6 months | DTaP-IPV-Hib | DTaP-IPV-Hib | DTaP-IPV-Hib | DTaP-IPV-Hib | DTaP-IPV-Hib | Previous dose + 28 days | ≥ 213 days (183 days + 30.43 days) |
12 months | MMR + varicella monovalent vaccine, PCV, Men-C-C | MMRV PCV, Men-C-C | MMRV PCV, Men-C-C | MMR PCV, Men-C-C | MMR PCV, Men-C-C | 365 days | ≥ 395 days (365 days + 30.43 days) |
18 months | DTaP-IPV-Hib, MMR | DTaP-IPV-Hib, MMR | DTaP-IPV-Hib, MMR | DTaP-IPV-Hib, MMRV | DTaP-IPV-Hib-HB, MMRV | DTaP-IPV-Hib ± HB: Previous dose + 183 days MMR ± V: Previous dose+ 28 days | ≥ 578 days (548 days + 30.43 days) |