Authors: M A Balogun; J V Parry; K Mutton; C Okolo; L Benons; H Baxendale; T Hardiman; E H Boxall; J Sira; M Brown; S Barnett; U Gungabissoon; A Williams; D A Kelly; S Vijeratnam; S Ijaz; B Taylor; C G Teo; M E Ramsay Journal: Epidemiol Infect Date: 2012-07-31 Impact factor: 4.434