Effect of Haemophilus influenzae type b vaccination without a booster dose on invasive H influenzae type b disease, nasopharyngeal carriage, and population immunity in Kilifi, Kenya: a 15-year regional surveillance study
Hammitt LL., Crane RJ., Karani A., Mutuku A., Morpeth SC., Burbidge P., Goldblatt D., Kamau T., Sharif S., Mturi N., Scott JAG.