Compared to the controls, patients with PJP had significantly lower median lymphocyte values (540 vs. 780 cells/mm3, p = 0.033), longer COVID-19 disease duration (25 vs. 16 days, p = 0.014), a higher cumulative dose of steroid received (178.5 vs. 78 mg, p = 0.026), higher CRP values (14.4 vs. 6.3 mg/dL, p = 0.005), and a lower SARS-CoV-2 vaccination rate than the controls (7 patients with at least one dose vs. 26 patients with no history of vaccination, p = 0.029) (Table 1). This evidence concerns the gene CRP and pneumocystosis.