IL17A and pneumococcal pneumonia: IL-17 levels were significantly lower in OVA-sensitized/challenged mice, compared to the control mice (9.69 ± 1.49 versus 20.92 ± 1.82 pg/mL, P < 0.001) and were elevated in mice with compared to those without pneumococcal pneumonia (20.53 ± 1.96 versus 10.28 ± 1.44 pg/mL, P < 0.001).