The authors of the above article regret that there was an error in the heading for Table4. It should read:

Table 4. Homogeneous pre-vaccination susceptibility among sites; heterogeneity ofvaccine effect within sites and confounding from exposure to infection; no boosting;increasing proportion exposed to infection in trial (A: 1/125, once; B:1/2, once; F: 1/1, once; G: 2; H: 3; I: 4; J: 5; K: 6; L: 7; M: 8) (VEc=0·5; VEc=0; TPc0=TPc=1; Nc=Nc=500)