... for Health Open AccessReview Are vaccination programmes delivered by lay health workers cost-effective? A systematic reviewAdrijana Corluka*1, Damian G Walker1, Simon Lewin2,3, Claire ... SA, Babigumira SM, Bosch-Capblanch X, Aja G, van Wyk B,Glenton C, Scheel I, Zwarenstein M, Daniels K: Lay health workers in primary and community health care: A systematic reviewof trials. A ... argument for the Alma Ata declara-tion on primary health care (PHC) thirty years ago, and itsemphasis on strengthening health care delivery within a wider definition of health, was that health...