[Influenza vaccination in HIV infected children: immunologic and viral load changes].

Objective: To identify whether influenza immunization in HIV infected children could increase HIV viral load and decrease CD4+ lymphocytes count as a consequence of the response induced by a T cell-dependent antigen.

Methods: Prospective, descriptive study, with 51 HIV infected children, vaccinated against influenza in 1999, in Florianópolis, Brazil. Blood samples were collected at three different moments: on the immunization day; between 14 and 20 days later; between 60 and 90 days later.