Fig 4. Proportion of symptomatic dengue virus (DENV) infections among total (symptomatic and subclinical) DENV infections in per-protocol subjects with different DENV hemagglutination inhibition (HAI) profiles at enrolment.
Negative HAI: 4/12; monotypic HAI: 2/5; multitypic HAI: 7/57 (chi-square, p = 0.068). Three symptomatic cases were not included because of missing HAI titers.