Table 2.

ELISpot Assessment of Cytokine Secretion by Pulmonary CD4⁺ T Cells

Cytokine	Chronic	Acute
IL-4	1.68 ± 0.66	3.04 ± 1.07*
IL-5	6.53 ± 0.16*	6.22 ± 0.33

Numbers of pulmonary CD4⁺ cells secreting IL-4 (n = 3 samples per group) and IL-5 (n = 4) expressed as fold change relative to the naïve group. Significant differences compared to the naïve group are shown as

^*P <0.05.