Inoculation Pneumonia Caused by Coagulase Negative Staphylococcus

Rationale: Although frequently retrieved in tracheal secretions of critically ill patients on mechanical ventilation, the existence of pneumonia caused by coagulase negative staphylococci (CoNS) remains controversial. Objective: To assess whether Staphylococcus haemolyticus(S. haemolyticus) inoculated in mice’s trachea can infect normal lung parenchyma, increasing concentrations of S.haemolyticus, were intratracheally administered in 221...