Figure 2From: A sham case-control study of effectiveness of DTP-Hib-hepatitis B vaccine against rotavirus acute gastroenteritis in Kenya Distribution of age of vaccination for dose 1, 2 & 3 of pentavalent vaccine by cases and controls. a, b, c Vertical dotted line represents scheduled date at 6, 10 & 14 weeks. Grey shaded area is considered timely vaccination.Back to article page