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Pneumocystis jirovecii Infections Among COVID-19 Patients: A Case Series and Literature Review
Paul Amstutz1, Nathan C Bahr2, Karen Snyder2
1School of Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA.
Background:
Pneumocystis jirovecii pneumonia (PCP) is a serious, emerging complication of coronavirus disease 2019 (COVID-19).
Methods:
We performed a systematic review of published cases. We describe 6 new cases of PCP/COVID-19 coinfection. Among our cases (n = 6) and those in the literature (n = 69) with available data, the median age (interquartile range [IQR]) was 59 (44-77) years (n = 38), 72% (47/65) were male, and the mortality rate was 30.9% (21/68).
Results:
Long-term corticosteroid use was noted in 45.1% (23/51), advanced HIV infection (defined as a CD4 count <200 cells/μL) in 17.6% (9/51), and antineoplastic chemotherapy in 13.7% (7/51), consistent with known PCP risk factors. Notably, 56.7% (38/47) had verifiable risk factors for PCP (high-dose corticosteroids, immunosuppressive therapy, and HIV infection) before COVID-19 infection. A median absolute lymphocyte count (IQR) of 0.61 (0.28-0.92) ×103 cells/mm3 (n = 23) and CD4 count (IQR) of 66 (33-291.5) cells/mm3 (n = 20) were also discovered among the study population.
Conclusions:
These findings suggest a need for greater attention to PCP risk factors among COVID-19 patients and consideration of PCP prophylaxis in these high-risk populations.
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