[Probable vertical transmission of the influenza virus A (H1N1): apropos of a case].

We report the case of a male newborn, product of a 36 week pregnancy, with diagnosis of congenital pneumonia and with a confirmatory test for influenza A (H1N1) virus, without any other suspicious contact. The mother was admitted to the hospital with respiratory failure and the history of a flu-like episode of 5 days of evolution, during the first days of the pandemic in Peru. Due to the severe evolution of the respiratory process, assisted ventilation was given to her and then a cesarean section was performed due to acute fetal distress and oligoamnios. The mother was later confirmed as a case of epidemic influenza A (H1N1) and pulmonary tuberculosis.