Protective immunity elicited by the nematode-conserved As37 recombinant protein against Ascaris suum infection
Cytokine levels were determined in supernatants of splenocytes after being re-stimulated with rAs37 (25 μg/ml) for 48 hours. Cytokine values measured in unstimulated samples were subtracted from the cytokine values from the corresponding rAs37 re-stimulated samples. Data are presented as means and individual values for each group (n = 5). *p< 0.05, **p< 0.01.