The efficacy, effectiveness, and immunogenicity of influenza vaccines in Africa: a systematic review

Lancet Infectious Diseases
Apr 2019  Volume 19Number 4p339-448, e109-e147
http://www.thelancet.com/journals/laninf/issue/current

Review
The efficacy, effectiveness, and immunogenicity of influenza vaccines in Africa: a systematic review
Benjamin B Lindsey, Edwin P Armitage, Beate Kampmann, Thushan I de Silva