Interdisciplinary assessment of the ramifications of oral thrush on speech production and feeding skills have not been conducted to date in children or adolescents infected with HIV. Most studies have assessed only single dimensions or functions such as language or they have yielded only descriptive data, for example, regarding the severity of oral thrush. This pilot study, however, will investigate the association between oral thrush and speech and feeding dysfunction using some newly-developed measures. The study will also examine whether oral candidiasis may influence the self-concept of children and adolescents with HIV infection.