Table 1. PCV immunization schemes according to guidelines from the Vaccines Committee of the Pediatric Infectious Diseases Society and Portuguese Pediatric Society*.

Vaccine	Start of vaccination scheme	Primary immunization course	Booster vaccination
PCV7	2–6 mo	3 doses, at 2, 4, and 6 mo	12–15 mo
	7–11 mo	2 doses	Booster dose at 12 mo†
	12–23 mo	2 doses‡	NA
	24–59 mo	Risk group only: 2 doses	NA
PCV13	2–6 mo	2 or 3 doses§	11–15 mo¶
	7–11 mo	2 doses§	11–15 mo¶
	12–23 mo	2 doses‡	NA
	>24 mo	1 dose	NA

*NA, not applicable; PCV, pneumococcal conjugate vaccine; PCV7, 7-valent PCV; PCV13, 13-valent PCV.
†8 weeks after the second dose.
‡>8 weeks apart.
§Minimum interval between doses 4 weeks.
¶Minimum interval from last dose 8 weeks.