[Intrafamilial transmission of Staphylococcus aureus Panton-Valentine leukocidin responsible for two cases of neonatal necrotizing pneumonia].

Necrotizing Staphylococcus aureus Panton-Valentine leukocidin (SA-PLV+) accounts for less than 1% of community-acquired lung diseases in children and young adults. Neonatal cases are exceptional. We report the observations of two newborn female twins, who were not breastfed, presenting a necrotizing lung disease due to the same strain of SA-PVL+ despite nasal decolonization measures taken. These two cases are informative and bring to light (1) the possibility of severe SA-PVL+ lung infections in young infants and (2) their strictly intrafamilial mode of transmission for which eradication measures were ineffective.