Moving towards transformational WASH – Authors' reply. Issue 11 (November 2019) - Pickering, Amy J; Arnold, Benjamin F; Prendergast, Andrew J; Null, Clair; Winch, Peter J; Njenga, Sammy M; Rahman, Mahbubur; Ntozini, Robert; Benjamin-Chung, Jade; Stewart, Christine P; Colford, John M; Luby, Stephen; et al.