Background characteristics of the study participants by season and survey.

<p>Background characteristics of the study participants by season and survey.</p

Age specific seroprevalence in participants with and without patent parasitemia seen during the health centre or community surveys.

<p>The horizontal axis shows the age groups and the vertical axis shows seropositive individuals (%) in each age group. Percentage and 95% confidence intervals of seroprevalence are shown by the bars.</p

The age pattern of asexual <i>P. falciparum</i> malaria parasitaemia in febrile and nonfebrile participants.

<p>The horizontal axis shows the age groups and the vertical axis shows prevalence of parasitaemia in each age group. Percentage and 95% confidence intervals of parasite prevalence are shown by the bars.</p

Locations of the catchment villages within the six study areas in The Gambia.

<p>Names of health centres and study areas are shown in red and the dots represent the villages in each study area.</p

Prevalence of malaria parasitaemia in The Gambia by age, season and survey.

<p>Prevalence of malaria parasitaemia in The Gambia by age, season and survey.</p

Seroprevalence by season in subjects seen during the health centre or community surveys.

<p>The horizontal axis shows the study areas and the vertical axis show the proportion of sero-positive individuals (%) in each study area. Percentage and 95% confidence intervals of seroprevalence are shown by the bars.</p

Frequency distribution of tuberculin induration sizes (mm) by residence in school children with a BCG scar present.

<p>10,679 of 13, 386 children, 79.8% had 0 mm induration and are not shown.</p

Correlation between age specific parasite prevalence in the community and health centre surveys.

<p>This was in the six study areas during the wet malaria transmission season in The Gambia (agegroups: <12, 12-, 36-, 72-,132-,192-, 312-, 552- months).</p

Relationship between village specifc parasite prevalence in the community and health centre surveys durng the wet malaria transmission season.

<p>Data points are parasite prevalence in each of the twenty villages used in the study. Some of the ‘village’ data that have been obtained from the heatlth facilities were quite small so that the correlation here has more scatter than it would do if the health-centre sampling had got optimal number per village.</p

Frequency distribution of smoothed tuberculin induration sizes (mm).

<p>Frequency distribution of smoothed tuberculin induration sizes (mm).</p