Immunization coverage and risk factors for failure to immunize within the Expanded Programme on Immunization in Kenya after introduction of new Haemophilus influenzae type b and he... by Ndiritu, M, Cowgill, K, Ismail, A, Chiphatsi, S, Kamau, T, Fegan, G, Feikin, DR, Newton, C, Scott, J

Effectiveness of Haemophilus influenzae type b Conjugate vaccine introduction into routine childhood immunization in Kenya. by Cowgill, K, Ndiritu, M, Nyiro, J, Slack, M, Chiphatsi, S, Ismail, A, Kamau, T, Mwangi, I, English, M, Newton, C, Feikin, DR, Scott, J