Table 3.

Vaccine-type pneumococcal carriage by quartile of village 13-valent pneumococcal conjugate vaccine (PCV13) coverage, Lao PDR, December 2013–June 2018*

	Vaccine-type pneumococcal carriage
Levels of PCV13 coverage	All children n/N (%)	Vaccinated children n/N (%)	Undervaccinated children n/N (%)
<25%	101/500 (20.2)	36/243 (14.8)	65/257 (25.3)
25%–50%	23/212 (10.9)	13/139 (9.3)	10/73 (13.7)
50%–75%	12/85 (14.1)	8/65 (12.3)	4/20 (20.0)
>75%	3/48 (6.3)	3/37 (8.1)	0/11 (0.0)

*Includes all participants recruited up to June 2017 and the additional 77 participants enrolled up to June 2018 that resided in villages where vaccination data had already been collected.

Lao PDR, Lao People’s Democratic Republic; PCV, pneumococcal conjugate vaccine.