1. International Vaccine Access Center - Johns Hokins Bloomberg School of Public Health. PCV introduction status [Internet]. 2015. http://www.jhsph.edu/research/centers-and-institutes/ivac/resources/maps.html . Accessed 5 Sept 2016.
2. UNICEF. Supply Division. Pneumococcal conjugate vaccine: supply & demand update. Copenhagen: UNICEF Supply Division; 2014.
3. World Health Organization. Pneumococcal vaccines — WHO position paper. Wkly Epidemiol Rec. 2012;14:129–44.
4. Scott JAG, Bauni E, Moisi JC, Ojal J, Gatakaa H, Nyundo C, et al. Profile: The Kilifi Health and Demographic Surveillance System (KHDSS). Int J Epidemiol. 2012;41:650–7.
5. Kinyanjui TM. Modelling the transmission dynamics of RSV and the impact of routine vaccination. Coventry: University of Warwick; 2013.