African women working in global health: closing the gender gap in Africa?

by Anna Roca, Uduak Okomo, Effua Usuf, Eniyou C Oriero, Ramatoulie Janha, Jane Achan, Carla Cerami
Published 2018-04-01

Vaccine wastage in The Gambia: a prospective observational study

by Effua Usuf, Grant Mackenzie, Lamin Ceesay, Dawda Sowe, Beate Kampmann, Anna Roca
Published 2018-07-01

Pneumococcal antibody concentrations of subjects in communities fully or partially vaccinated with a seven-valent pneumococcal conjugate vaccine.

by Martin O C Ota, Anna Roca, Christian Bottomley, Philip C Hill, Uzochukwu Egere, Brian Greenwood, Richard A Adegbola

Prevalence and risk factors for Staphylococcus aureus nasopharyngeal carriage during a PCV trial

by Abdoulie Bojang, Lindsay Kendall, Effua Usuf, Uzochukwu Egere, Sarah Mulwa, Martin Antonio, Brian Greenwood, Philip C. Hill, Anna Roca
Published 2017-08-01

Short-term increase in prevalence of nasopharyngeal carriage of macrolide-resistant Staphylococcus aureus following mass drug administration with azithromycin for trachoma control

by Ebrima Bojang, James Jafali, Vincent Perreten, John Hart, Emma M. Harding-Esch, Ansumana Sillah, David C. W. Mabey, Martin J. Holland, Robin L. Bailey, Anna Roca, Sarah E. Burr
Published 2017-03-01