Azithromycin Microspheres in Patients With Low Risk Community Acquired Pneumonia

Inclusion Criteria: * Male or female, 18 years age or older, for whom oral, outpatient therapy is indicated. * Diagnosis of CAP as manifested by at least 3 or more of the following: * cough, pleuritic chest pain, fever (temperature of \>37.8 C to \<40 C), auscultatory findings on pulmonary examination of rales and/or evidence of pulmonary consolidation, dyspnea, tachypnea, laboratory results of elevated total peripheral white blood count (WBC\> 10,000/mm3 or greater than 15% immature neutrophils (bands) Exclusion Criteria: * Known or suspected hypersensitivity or intolerance to azithromycin or other macrolides. * Previously diagnosed disease(s) of immune function, including: subjects with baseline absolute neutrophil count \< 1,000/mm3, HIV positive subjects with CD4 count \< 200 cells/mm3, any immunoglobin or neutrophil disorder.