Conclusion

//L. pneumophila//  is the major infectious agent in many cases of //Legionellosi// //disease.//This species are found worldwide and are ubiquitous in both natural and man-made environments. It is a gram-nagative, non-capsulated bacterium and the most common Legionella specie associated with human disease. Despite the fact that //L. pneumophilia// is an ecological organism, its typical capacity to reproduce inside the eukaryotic host cells and its aptitude to bypass ordinary pathogen supervision process in the host, have generate its expansion as a vital yet occasional purpose of hospital- and community-acquired pneumonia. Clinical diagnosis of Legionnaires’ disease is relatively difficult due to the non-specific presentation of the disease. Epidemiologic clues may include the use of a spa, recent pneumonia of a traveller, or recent plumbing work. Appropriate microbiological testing is required for the diagnosis of the disease, thus many cases may go un-diagnosed making the occurrence rates higher than known. Although the clinical aspects of //L. Pneumophilia// displays two types of diseases described as; Legionnaires disease and Pontiac fever, this patient shows symptoms from Legionnaires disease which is more severe. For the treatment of Legionnaires disease, a high level of suspicion and prompt initiation of adequate antimicrobial therapy are critical to improve clinical outcome. Specific therapy includes antibiotics capable of achieving high intracellular concentrations. Recommended therapy is 5-10 days if azithromycin is used. If other drugs are used, the duration should be 2-3 weeks. But, for the more severe of the disease, or immunocompromise, prolonged courses may be required.