After publication of the original article [1] it was brought to our attention that author Fabian Cataldo was incorrectly included as Fabian Caltado. The correct spelling of the name is included in the author list of this erratum.
Authors: Levison Stanely Chiwaula; Gowokani Chijere Chirwa; Fabian Cataldo; Atupele Kapito-Tembo; Mina C Hosseinipour; Monique van Lettow; Hannock Tweya; Virginia Kayoyo; Blessings Khangamwa-Kaunda; Florence Kasende; Clement Trapence; Salem Gugsa; Nora E Rosenberg; Michael Eliya; Sam Phiri Journal: BMC Health Serv Res Date: 2016-04-19 Impact factor: 2.655