Figure 1From: Epidemiology of nasopharyngeal carriage of respiratory bacterial pathogens in children and adults: cross-sectional surveys in a population with high rates of pneumococcal disease Enrolment and follow-up profile. Note: Number of eligible adults (324) and children (218) is not equal to the total number of eligible participants (538) as four participants were categorized as children in 2002 and then categorized as adults in 2004.Back to article page