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Use of the Centers for Disease Control and Prevention-Brazilian post-exposure prophylaxis regimen will result in the administration of antiretroviral agents to which the source HIV-1 isolate will often be resistant. Therefore, it would be advisable to carefully investigate the history of use of antiretroviral agents by source-patients and adjust the prophylactic therapy based on those data and, subsequently, the results of resistance testing.

RESUMO -Apresentamos 6 casos de meningoencefalite aguda por sarampo, diagnosticados durante epidemia na cidade de São Paulo, em 1997. Os prontuários dos 6 pacientes foram analisados retrospectivamente. O diagnóstico de meningoencefalite baseou-se nas alterações clínicas e liquóricas, e foi confirmado por sorologia específica. Dos 467 pacientes com sarampo atendidos no Instituto de Infectologia Emílio Ribas nesse período, estes 6 evoluíram com alterações neurológicas e liquóricas durante a fase exantemática, sendo a sonolência e rigidez de nuca os achados mais frequentes. Os pacientes tinham entre 2 meses e 28 anos de idade. O exame do líquor mostrou pleocitose em todos. Não houve correlação entre a severidade do quadro clínico e liquórico com a evolução. Em 4 casos foi necessária internação na unidade de terapia intensiva; destes, 2 foram intubados. Apenas 2 pacientes apresentaram alterações na tomografia computadorizada de crânio. Todos tiveram boa evolução, sem sequelas.PALAVRAS-CHAVE: sarampo, meningoencefalite, encefalite, meningite. Acute meningoencephalitis due to measles: report of six casesABSTRACT -We present the clinical and laboratory manifestations of encephalitis following measles in six patients which were diagnosed during the epidemics that occurred in the city of São Paulo, Brazil, in 1997. We performed retrospective case analysis of the six patients diagnosed as having encephalitis due to measles. Encephalitis was diagnosed based on clinical grounds and on the cerebrospinal fluid (CSF) alterations. All the cases were serologically confirmed.Of 467 patients with measles who presented themselves for medical care at the Instituto de Infectologia Emílio Ribas six were diagnosed with encephalitis. Patient's age was 2 months to 28 years old. The most frequent symptoms were drowsiness and nuchal rigidity. CSF showed an increased of white cell count in all cases. Four patients were admitted to the intensive care unit. Two of them required mechanical ventilation. In only two patients did the computerized tomography show abnormalities. All showed good recovery without sequelae.

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