Acute lung abscess

The infectious bacteria of acute lung abscess are common bacteria in the upper respiratory tract and oral cavity. It is often a mixed infection, including aerobic and anaerobic Gram-positive and negative cocci and bacilli. The most common pathogens are Staphylococcus, Streptococcus, pneumococcus, spindle bacteria and spirochetes. The importance of anaerobic bacteria in pulmonary suppurative infection has only been paid attention to in recent years due to the improvement of culture technology. The more important anaerobic bacteria include Streptococcus peptone, peptococcus, Clostridium nucleatum, Bacteroides, varonicus, spirochete, etc. In addition to the above anaerobic bacteria, there are aerobic or facultative anaerobic bacteria.