Model citizen - Authors' reply by Brady, OJ, Slater, HC, Pemberton-Ross, P, Wenger, E, Maude, RJ, Ghani, AC, Penny, MA, Gerardin, J, White, LJ, Chitnis, N, Aguas, R, Hay, SI, Smith, DL, Stuckey, EM, Okiro, EA, Smith, TA, Okell, LC