Low Titer Pneumocystis jirovecii Infections: More than Just Colonization?
AbstractNon-pneumonia Pneumocystis jirovecii colonization is thought to occur frequently in immunocompetent individuals. The aim was to analyze if P. jirovecii low-titer detections have more impact than just colonization. From our total cohort of patients for which P. jirovecii testing by qPCR was requested, we selected exclusively those that were fully immunocompetent. Patients were defined as fully immunocompetent if they did not receive immunosuppressive therapy, displayed regular antibody titers, and did not suffer from acquired, inherited or autoimmune diseases. Only those patients with complete medical records available were included. A retrospective analysis identified patients with P. jirovecii colonization and successful antibiotic therapy in response to laboratory pathogen detection. We identified 30 fully immunocompetent patients with P. jirovecii colonization suspected to suffer from infection with the pathogen, but with milder symptoms than pneumonia. All patients were successfully treated with cotrimoxazole against P. jirovecii and resolved from chronic cough and recurrent pulmonary infections. The fact that all patients displayed recovery from their clinical symptoms gives raise to the hypothesis that P. jirovecii infections may also occur in immunocompetent patients but with milder symptoms. View Full-Text
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Prickartz, A.; Lüsebrink, J.; Khalfaoui, S.; Schildgen, O.; Schildgen, V.; Windisch, W.; Brockmann, M. Low Titer Pneumocystis jirovecii Infections: More than Just Colonization? J. Fungi 2016, 2, 16.
Prickartz A, Lüsebrink J, Khalfaoui S, Schildgen O, Schildgen V, Windisch W, Brockmann M. Low Titer Pneumocystis jirovecii Infections: More than Just Colonization? Journal of Fungi. 2016; 2(2):16.Chicago/Turabian Style
Prickartz, Alexander; Lüsebrink, Jessica; Khalfaoui, Soumaya; Schildgen, Oliver; Schildgen, Verena; Windisch, Wolfram; Brockmann, Michael. 2016. "Low Titer Pneumocystis jirovecii Infections: More than Just Colonization?" J. Fungi 2, no. 2: 16.
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