RESUMO

The patterns of colonization of D. pneumoniae were studied over a 46-month period in a group of young children in a day-care center. Forty-four percent of nasal cultures yielded D. pneumoniae. The most frequently isolated serotypes--6, 19, and 23--accounted for 49% of the isolates; the nine most common serotypes included 80% of the isolates. Individual serotypes frequently were carried for several months. Reacquisition of a serotype previously carried occurred frequently. There was limited spread of serotypes among the children despite prolonged contact.

Assuntos

Mucosa Nasal/microbiologia , Streptococcus pneumoniae/isolamento & purificação , Fatores Etários , População Negra , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Sorotipagem , Fatores Sexuais , Fatores de Tempo , População Branca