Following an outline that details the pathogens causing community-acqu
ired pneumonia (CAP) identified in studies from Europe, this article r
eviews the guidelines for the management of CAP in four European count
ries-France, Italy, Spain, and the United Kingdom. The method behind t
he development of each document is described, followed by a comparison
of the scope of each document. All four documents provide guidelines
for the management of two groups of patients-the severely ill and the
nonseverely ill patient. A penicillin or macrolide feature for the non
severely ill and the combination of a third-generation cephalosporin p
lus a macrolide for the severely ill patient are described in all four
guidelines. Despite their different origins and methods, these four g
uidelines have more similarities than differences-the latter serving t
o emphasize some of the areas that require further research in this im
portant condition. An important area for research is the impact that t
hese guidelines have on practice and especially on clinical outcomes.